Finding the Fourth Proportional to 31,059.86, 42,861.29 and 17,630.87

Step by Step Solution

1. Step 1: Write the proportion equation
   31,059.86 : 42,861.29 = 17,630.87 : x
2. Step 2: Convert to fraction form
   31,059.86/42,861.29 = 17,630.87/x
3. Step 3: Cross multiply
   31,059.86x = 42,861.29 × 17,630.87
4. Step 4: Simplify right side
   31,059.86x = 755,681,529.56
5. Step 5: Solve for x
   x = 755,681,529.56/31,059.86
6. Step 6: Final answer
   x = 24,329.85