Finding the Fourth Proportional to 28,007,505.24, 42,012,570.06 and 13,613,414.82

Step by Step Solution

1. Step 1: Write the proportion equation
   28,007,505.24 : 42,012,570.06 = 13,613,414.82 : x
2. Step 2: Convert to fraction form
   28,007,505.24/42,012,570.06 = 13,613,414.82/x
3. Step 3: Cross multiply
   28,007,505.24x = 42,012,570.06 × 13,613,414.82
4. Step 4: Simplify right side
   28,007,505.24x = 571,934,543,881,092.38
5. Step 5: Solve for x
   x = 571,934,543,881,092.38/28,007,505.24
6. Step 6: Final answer
   x = 20,420,760.04