Finding the Fourth Proportional to 42,704,007.12, 64,042,762.56 and 15,406,751.28

Step by Step Solution

1. Step 1: Write the proportion equation
   42,704,007.12 : 64,042,762.56 = 15,406,751.28 : x
2. Step 2: Convert to fraction form
   42,704,007.12/64,042,762.56 = 15,406,751.28/x
3. Step 3: Cross multiply
   42,704,007.12x = 64,042,762.56 × 15,406,751.28
4. Step 4: Simplify right side
   42,704,007.12x = 986,690,914,046,016.12
5. Step 5: Solve for x
   x = 986,690,914,046,016.12/42,704,007.12
6. Step 6: Final answer
   x = 23,105,347.26