Finding the Fourth Proportional to 21,059,219.58, 29,061,915.12 and 12,357,537.27

Step by Step Solution

1. Step 1: Write the proportion equation
   21,059,219.58 : 29,061,915.12 = 12,357,537.27 : x
2. Step 2: Convert to fraction form
   21,059,219.58/29,061,915.12 = 12,357,537.27/x
3. Step 3: Cross multiply
   21,059,219.58x = 29,061,915.12 × 12,357,537.27
4. Step 4: Simplify right side
   21,059,219.58x = 359,133,699,232,976.50
5. Step 5: Solve for x
   x = 359,133,699,232,976.50/21,059,219.58
6. Step 6: Final answer
   x = 17,053,514.16