Finding the Fourth Proportional to 9,380.91, 12,945.42 and 5,132.00

Step by Step Solution

1. Step 1: Write the proportion equation
   9,380.91 : 12,945.42 = 5,132.00 : x
2. Step 2: Convert to fraction form
   9,380.91/12,945.42 = 5,132.00/x
3. Step 3: Cross multiply
   9,380.91x = 12,945.42 × 5,132.00
4. Step 4: Simplify right side
   9,380.91x = 66,435,830.71
5. Step 5: Solve for x
   x = 66,435,830.71/9,380.91
6. Step 6: Final answer
   x = 7,082.02