Finding the Fourth Proportional to 142,331.69, 213,490.22 and 42,492.71

Step by Step Solution

1. Step 1: Write the proportion equation
   142,331.69 : 213,490.22 = 42,492.71 : x
2. Step 2: Convert to fraction form
   142,331.69/213,490.22 = 42,492.71/x
3. Step 3: Cross multiply
   142,331.69x = 213,490.22 × 42,492.71
4. Step 4: Simplify right side
   142,331.69x = 9,071,776,726.38
5. Step 5: Solve for x
   x = 9,071,776,726.38/142,331.69
6. Step 6: Final answer
   x = 63,736.87