Finding the Fourth Proportional to 42,287.31, 58,355.82 and 23,166.91

Step by Step Solution

1. Step 1: Write the proportion equation
   42,287.31 : 58,355.82 = 23,166.91 : x
2. Step 2: Convert to fraction form
   42,287.31/58,355.82 = 23,166.91/x
3. Step 3: Cross multiply
   42,287.31x = 58,355.82 × 23,166.91
4. Step 4: Simplify right side
   42,287.31x = 1,351,924,029.92
5. Step 5: Solve for x
   x = 1,351,924,029.92/42,287.31
6. Step 6: Final answer
   x = 31,969.97