Finding the Fourth Proportional to 9,059.69, 12,502.35 and 5,522.90

Step by Step Solution

1. Step 1: Write the proportion equation
   9,059.69 : 12,502.35 = 5,522.90 : x
2. Step 2: Convert to fraction form
   9,059.69/12,502.35 = 5,522.90/x
3. Step 3: Cross multiply
   9,059.69x = 12,502.35 × 5,522.90
4. Step 4: Simplify right side
   9,059.69x = 69,049,228.82
5. Step 5: Solve for x
   x = 69,049,228.82/9,059.69
6. Step 6: Final answer
   x = 7,621.59