Finding the Fourth Proportional to 8,783.60, 12,123.12 and 5,799.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,783.60 : 12,123.12 = 5,799.56 : x
2. Step 2: Convert to fraction form
   8,783.60/12,123.12 = 5,799.56/x
3. Step 3: Cross multiply
   8,783.60x = 12,123.12 × 5,799.56
4. Step 4: Simplify right side
   8,783.60x = 70,308,761.83
5. Step 5: Solve for x
   x = 70,308,761.83/8,783.60
6. Step 6: Final answer
   x = 8,004.55