Finding the Fourth Proportional to 8,799.06, 12,142.58 and 4,820.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,799.06 : 12,142.58 = 4,820.16 : x
2. Step 2: Convert to fraction form
   8,799.06/12,142.58 = 4,820.16/x
3. Step 3: Cross multiply
   8,799.06x = 12,142.58 × 4,820.16
4. Step 4: Simplify right side
   8,799.06x = 58,529,154.31
5. Step 5: Solve for x
   x = 58,529,154.31/8,799.06
6. Step 6: Final answer
   x = 6,651.75