Finding the Fourth Proportional to 8,780.52, 12,116.30 and 5,004.30

Step by Step Solution

1. Step 1: Write the proportion equation
   8,780.52 : 12,116.30 = 5,004.30 : x
2. Step 2: Convert to fraction form
   8,780.52/12,116.30 = 5,004.30/x
3. Step 3: Cross multiply
   8,780.52x = 12,116.30 × 5,004.30
4. Step 4: Simplify right side
   8,780.52x = 60,633,600.09
5. Step 5: Solve for x
   x = 60,633,600.09/8,780.52
6. Step 6: Final answer
   x = 6,905.47