Finding the Fourth Proportional to 8,799.02, 12,142.80 and 4,819.88

Step by Step Solution

1. Step 1: Write the proportion equation
   8,799.02 : 12,142.80 = 4,819.88 : x
2. Step 2: Convert to fraction form
   8,799.02/12,142.80 = 4,819.88/x
3. Step 3: Cross multiply
   8,799.02x = 12,142.80 × 4,819.88
4. Step 4: Simplify right side
   8,799.02x = 58,526,838.86
5. Step 5: Solve for x
   x = 58,526,838.86/8,799.02
6. Step 6: Final answer
   x = 6,651.52