Finding the Fourth Proportional to 9,060.42, 12,498.07 and 5,697.90

Step by Step Solution

1. Step 1: Write the proportion equation
   9,060.42 : 12,498.07 = 5,697.90 : x
2. Step 2: Convert to fraction form
   9,060.42/12,498.07 = 5,697.90/x
3. Step 3: Cross multiply
   9,060.42x = 12,498.07 × 5,697.90
4. Step 4: Simplify right side
   9,060.42x = 71,212,753.05
5. Step 5: Solve for x
   x = 71,212,753.05/9,060.42
6. Step 6: Final answer
   x = 7,859.76