Finding the Fourth Proportional to 9,071.12, 12,513.04 and 6,238.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,071.12 : 12,513.04 = 6,238.16 : x
2. Step 2: Convert to fraction form
   9,071.12/12,513.04 = 6,238.16/x
3. Step 3: Cross multiply
   9,071.12x = 12,513.04 × 6,238.16
4. Step 4: Simplify right side
   9,071.12x = 78,058,345.61
5. Step 5: Solve for x
   x = 78,058,345.61/9,071.12
6. Step 6: Final answer
   x = 8,605.15