Finding the Fourth Proportional to 42,568.96, 58,758.72 and 29,135.20

Step by Step Solution

1. Step 1: Write the proportion equation
   42,568.96 : 58,758.72 = 29,135.20 : x
2. Step 2: Convert to fraction form
   42,568.96/58,758.72 = 29,135.20/x
3. Step 3: Cross multiply
   42,568.96x = 58,758.72 × 29,135.20
4. Step 4: Simplify right side
   42,568.96x = 1,711,947,058.94
5. Step 5: Solve for x
   x = 1,711,947,058.94/42,568.96
6. Step 6: Final answer
   x = 40,215.85