Finding the Fourth Proportional to 9,060.72, 12,497.47 and 8,755.91

Step by Step Solution

1. Step 1: Write the proportion equation
   9,060.72 : 12,497.47 = 8,755.91 : x
2. Step 2: Convert to fraction form
   9,060.72/12,497.47 = 8,755.91/x
3. Step 3: Cross multiply
   9,060.72x = 12,497.47 × 8,755.91
4. Step 4: Simplify right side
   9,060.72x = 109,426,685.04
5. Step 5: Solve for x
   x = 109,426,685.04/9,060.72
6. Step 6: Final answer
   x = 12,077.05