Finding the Fourth Proportional to 59,490.30, 89,138.97 and 31,408.86

Step by Step Solution

1. Step 1: Write the proportion equation
   59,490.30 : 89,138.97 = 31,408.86 : x
2. Step 2: Convert to fraction form
   59,490.30/89,138.97 = 31,408.86/x
3. Step 3: Cross multiply
   59,490.30x = 89,138.97 × 31,408.86
4. Step 4: Simplify right side
   59,490.30x = 2,799,753,429.27
5. Step 5: Solve for x
   x = 2,799,753,429.27/59,490.30
6. Step 6: Final answer
   x = 47,062.35