Finding the Fourth Proportional to 8,778.32, 12,113.80 and 4,799.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,778.32 : 12,113.80 = 4,799.42 : x
2. Step 2: Convert to fraction form
   8,778.32/12,113.80 = 4,799.42/x
3. Step 3: Cross multiply
   8,778.32x = 12,113.80 × 4,799.42
4. Step 4: Simplify right side
   8,778.32x = 58,139,214.00
5. Step 5: Solve for x
   x = 58,139,214.00/8,778.32
6. Step 6: Final answer
   x = 6,623.05