Finding the Fourth Proportional to 42,658.10, 58,872.40 and 31,884.30

Step by Step Solution

1. Step 1: Write the proportion equation
   42,658.10 : 58,872.40 = 31,884.30 : x
2. Step 2: Convert to fraction form
   42,658.10/58,872.40 = 31,884.30/x
3. Step 3: Cross multiply
   42,658.10x = 58,872.40 × 31,884.30
4. Step 4: Simplify right side
   42,658.10x = 1,877,105,263.32
5. Step 5: Solve for x
   x = 1,877,105,263.32/42,658.10
6. Step 6: Final answer
   x = 44,003.49