Finding the Fourth Proportional to 9,059.31, 12,501.86 and 5,522.51

Step by Step Solution

1. Step 1: Write the proportion equation
   9,059.31 : 12,501.86 = 5,522.51 : x
2. Step 2: Convert to fraction form
   9,059.31/12,501.86 = 5,522.51/x
3. Step 3: Cross multiply
   9,059.31x = 12,501.86 × 5,522.51
4. Step 4: Simplify right side
   9,059.31x = 69,041,650.51
5. Step 5: Solve for x
   x = 69,041,650.51/9,059.31
6. Step 6: Final answer
   x = 7,621.07