Finding the Fourth Proportional to 42,798,153.24, 64,207,686.53 and 13,651,997.29

Step by Step Solution

1. Step 1: Write the proportion equation
   42,798,153.24 : 64,207,686.53 = 13,651,997.29 : x
2. Step 2: Convert to fraction form
   42,798,153.24/64,207,686.53 = 13,651,997.29/x
3. Step 3: Cross multiply
   42,798,153.24x = 64,207,686.53 × 13,651,997.29
4. Step 4: Simplify right side
   42,798,153.24x = 876,563,162,504,729.50
5. Step 5: Solve for x
   x = 876,563,162,504,729.50/42,798,153.24
6. Step 6: Final answer
   x = 20,481,331.46