Finding the Fourth Proportional to 42,072.20, 58,071.56 and 29,500.04

Step by Step Solution

1. Step 1: Write the proportion equation
   42,072.20 : 58,071.56 = 29,500.04 : x
2. Step 2: Convert to fraction form
   42,072.20/58,071.56 = 29,500.04/x
3. Step 3: Cross multiply
   42,072.20x = 58,071.56 × 29,500.04
4. Step 4: Simplify right side
   42,072.20x = 1,713,113,342.86
5. Step 5: Solve for x
   x = 1,713,113,342.86/42,072.20
6. Step 6: Final answer
   x = 40,718.42