Finding the Fourth Proportional to 42,960,757.12, 64,434,734.88 and 14,207,043.04

Step by Step Solution

1. Step 1: Write the proportion equation
   42,960,757.12 : 64,434,734.88 = 14,207,043.04 : x
2. Step 2: Convert to fraction form
   42,960,757.12/64,434,734.88 = 14,207,043.04/x
3. Step 3: Cross multiply
   42,960,757.12x = 64,434,734.88 × 14,207,043.04
4. Step 4: Simplify right side
   42,960,757.12x = 915,427,051,711,149.25
5. Step 5: Solve for x
   x = 915,427,051,711,149.25/42,960,757.12
6. Step 6: Final answer
   x = 21,308,447.83