Finding the Fourth Proportional to 8,760.30, 12,089.25 and 4,781.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,760.30 : 12,089.25 = 4,781.50 : x
2. Step 2: Convert to fraction form
   8,760.30/12,089.25 = 4,781.50/x
3. Step 3: Cross multiply
   8,760.30x = 12,089.25 × 4,781.50
4. Step 4: Simplify right side
   8,760.30x = 57,804,748.88
5. Step 5: Solve for x
   x = 57,804,748.88/8,760.30
6. Step 6: Final answer
   x = 6,598.49