Finding the Fourth Proportional to 9,059.16, 12,498.86 and 5,705.32

Step by Step Solution

1. Step 1: Write the proportion equation
   9,059.16 : 12,498.86 = 5,705.32 : x
2. Step 2: Convert to fraction form
   9,059.16/12,498.86 = 5,705.32/x
3. Step 3: Cross multiply
   9,059.16x = 12,498.86 × 5,705.32
4. Step 4: Simplify right side
   9,059.16x = 71,309,995.94
5. Step 5: Solve for x
   x = 71,309,995.94/9,059.16
6. Step 6: Final answer
   x = 7,871.59