Finding the Fourth Proportional to 9,314.80, 12,854.08 and 5,123.02

Step by Step Solution

1. Step 1: Write the proportion equation
   9,314.80 : 12,854.08 = 5,123.02 : x
2. Step 2: Convert to fraction form
   9,314.80/12,854.08 = 5,123.02/x
3. Step 3: Cross multiply
   9,314.80x = 12,854.08 × 5,123.02
4. Step 4: Simplify right side
   9,314.80x = 65,851,708.92
5. Step 5: Solve for x
   x = 65,851,708.92/9,314.80
6. Step 6: Final answer
   x = 7,069.58