Finding the Fourth Proportional to 10,345.50, 15,521.31 and 5,966.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,345.50 : 15,521.31 = 5,966.10 : x
2. Step 2: Convert to fraction form
   10,345.50/15,521.31 = 5,966.10/x
3. Step 3: Cross multiply
   10,345.50x = 15,521.31 × 5,966.10
4. Step 4: Simplify right side
   10,345.50x = 92,601,687.59
5. Step 5: Solve for x
   x = 92,601,687.59/10,345.50
6. Step 6: Final answer
   x = 8,950.91