Finding the Fourth Proportional to 9,291.92, 12,818.32 and 6,150.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,291.92 : 12,818.32 = 6,150.72 : x
2. Step 2: Convert to fraction form
   9,291.92/12,818.32 = 6,150.72/x
3. Step 3: Cross multiply
   9,291.92x = 12,818.32 × 6,150.72
4. Step 4: Simplify right side
   9,291.92x = 78,841,897.19
5. Step 5: Solve for x
   x = 78,841,897.19/9,291.92
6. Step 6: Final answer
   x = 8,485.00