Finding the Fourth Proportional to 42,258.31, 58,317.37 and 23,138.87

Step by Step Solution

1. Step 1: Write the proportion equation
   42,258.31 : 58,317.37 = 23,138.87 : x
2. Step 2: Convert to fraction form
   42,258.31/58,317.37 = 23,138.87/x
3. Step 3: Cross multiply
   42,258.31x = 58,317.37 × 23,138.87
4. Step 4: Simplify right side
   42,258.31x = 1,349,397,693.74
5. Step 5: Solve for x
   x = 1,349,397,693.74/42,258.31
6. Step 6: Final answer
   x = 31,932.13