Finding the Fourth Proportional to 9,116.42, 12,572.28 and 5,753.43

Step by Step Solution

1. Step 1: Write the proportion equation
   9,116.42 : 12,572.28 = 5,753.43 : x
2. Step 2: Convert to fraction form
   9,116.42/12,572.28 = 5,753.43/x
3. Step 3: Cross multiply
   9,116.42x = 12,572.28 × 5,753.43
4. Step 4: Simplify right side
   9,116.42x = 72,333,732.92
5. Step 5: Solve for x
   x = 72,333,732.92/9,116.42
6. Step 6: Final answer
   x = 7,934.45