Finding the Fourth Proportional to 28,514,629.72, 42,775,530.18 and 13,942,036.36

Step by Step Solution

1. Step 1: Write the proportion equation
   28,514,629.72 : 42,775,530.18 = 13,942,036.36 : x
2. Step 2: Convert to fraction form
   28,514,629.72/42,775,530.18 = 13,942,036.36/x
3. Step 3: Cross multiply
   28,514,629.72x = 42,775,530.18 × 13,942,036.36
4. Step 4: Simplify right side
   28,514,629.72x = 596,377,997,087,837.38
5. Step 5: Solve for x
   x = 596,377,997,087,837.38/28,514,629.72
6. Step 6: Final answer
   x = 20,914,807.69