Finding the Fourth Proportional to 9,040.31, 12,475.80 and 5,061.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,040.31 : 12,475.80 = 5,061.42 : x
2. Step 2: Convert to fraction form
   9,040.31/12,475.80 = 5,061.42/x
3. Step 3: Cross multiply
   9,040.31x = 12,475.80 × 5,061.42
4. Step 4: Simplify right side
   9,040.31x = 63,145,263.64
5. Step 5: Solve for x
   x = 63,145,263.64/9,040.31
6. Step 6: Final answer
   x = 6,984.86