Finding the Fourth Proportional to 9,326.04, 12,870.18 and 5,134.32

Step by Step Solution

1. Step 1: Write the proportion equation
   9,326.04 : 12,870.18 = 5,134.32 : x
2. Step 2: Convert to fraction form
   9,326.04/12,870.18 = 5,134.32/x
3. Step 3: Cross multiply
   9,326.04x = 12,870.18 × 5,134.32
4. Step 4: Simplify right side
   9,326.04x = 66,079,622.58
5. Step 5: Solve for x
   x = 66,079,622.58/9,326.04
6. Step 6: Final answer
   x = 7,085.50