Finding the Fourth Proportional to 21,414,406,639,030, 29,551,981,237,404 and 12,165,898,430,112

Step by Step Solution

1. Step 1: Write the proportion equation
   21,414,406,639,030 : 29,551,981,237,404 = 12,165,898,430,112 : x
2. Step 2: Convert to fraction form
   21,414,406,639,030/29,551,981,237,404 = 12,165,898,430,112/x
3. Step 3: Cross multiply
   21,414,406,639,030x = 29,551,981,237,404 × 12,165,898,430,112
4. Step 4: Simplify right side
   21,414,406,639,030x = 359,526,402,142,832,568,859,361,280
5. Step 5: Solve for x
   x = 359,526,402,142,832,568,859,361,280/21,414,406,639,030
6. Step 6: Final answer
   x = 16,788,996,688,218.20