Finding the Fourth Proportional to 21,160,300.63, 29,201,534.82 and 11,869,930.09

Step by Step Solution

1. Step 1: Write the proportion equation
   21,160,300.63 : 29,201,534.82 = 11,869,930.09 : x
2. Step 2: Convert to fraction form
   21,160,300.63/29,201,534.82 = 11,869,930.09/x
3. Step 3: Cross multiply
   21,160,300.63x = 29,201,534.82 × 11,869,930.09
4. Step 4: Simplify right side
   21,160,300.63x = 346,620,176,834,100.75
5. Step 5: Solve for x
   x = 346,620,176,834,100.75/21,160,300.63
6. Step 6: Final answer
   x = 16,380,683.00