Finding the Fourth Proportional to 9,426.62, 13,008.98 and 5,177.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,426.62 : 13,008.98 = 5,177.96 : x
2. Step 2: Convert to fraction form
   9,426.62/13,008.98 = 5,177.96/x
3. Step 3: Cross multiply
   9,426.62x = 13,008.98 × 5,177.96
4. Step 4: Simplify right side
   9,426.62x = 67,359,978.08
5. Step 5: Solve for x
   x = 67,359,978.08/9,426.62
6. Step 6: Final answer
   x = 7,145.72