Finding the Fourth Proportional to 10,123.50, 15,174.98 and 3,881.90

Step by Step Solution

1. Step 1: Write the proportion equation
   10,123.50 : 15,174.98 = 3,881.90 : x
2. Step 2: Convert to fraction form
   10,123.50/15,174.98 = 3,881.90/x
3. Step 3: Cross multiply
   10,123.50x = 15,174.98 × 3,881.90
4. Step 4: Simplify right side
   10,123.50x = 58,907,754.86
5. Step 5: Solve for x
   x = 58,907,754.86/10,123.50
6. Step 6: Final answer
   x = 5,818.91