Finding the Fourth Proportional to 9,070.32, 12,520.88 and 5,534.80

Step by Step Solution

1. Step 1: Write the proportion equation
   9,070.32 : 12,520.88 = 5,534.80 : x
2. Step 2: Convert to fraction form
   9,070.32/12,520.88 = 5,534.80/x
3. Step 3: Cross multiply
   9,070.32x = 12,520.88 × 5,534.80
4. Step 4: Simplify right side
   9,070.32x = 69,300,566.62
5. Step 5: Solve for x
   x = 69,300,566.62/9,070.32
6. Step 6: Final answer
   x = 7,640.37