Finding the Fourth Proportional to 9,077.62, 12,528.47 and 5,542.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,077.62 : 12,528.47 = 5,542.88 : x
2. Step 2: Convert to fraction form
   9,077.62/12,528.47 = 5,542.88/x
3. Step 3: Cross multiply
   9,077.62x = 12,528.47 × 5,542.88
4. Step 4: Simplify right side
   9,077.62x = 69,443,805.79
5. Step 5: Solve for x
   x = 69,443,805.79/9,077.62
6. Step 6: Final answer
   x = 7,650.00