Finding the Fourth Proportional to 6,385.86, 9,600.66 and 5,904.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,385.86 : 9,600.66 = 5,904.72 : x
2. Step 2: Convert to fraction form
   6,385.86/9,600.66 = 5,904.72/x
3. Step 3: Cross multiply
   6,385.86x = 9,600.66 × 5,904.72
4. Step 4: Simplify right side
   6,385.86x = 56,689,209.12
5. Step 5: Solve for x
   x = 56,689,209.12/6,385.86
6. Step 6: Final answer
   x = 8,877.30