Finding the Fourth Proportional to 9,061.28, 13,589.79 and 2,487.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,061.28 : 13,589.79 = 2,487.98 : x
2. Step 2: Convert to fraction form
   9,061.28/13,589.79 = 2,487.98/x
3. Step 3: Cross multiply
   9,061.28x = 13,589.79 × 2,487.98
4. Step 4: Simplify right side
   9,061.28x = 33,811,125.72
5. Step 5: Solve for x
   x = 33,811,125.72/9,061.28
6. Step 6: Final answer
   x = 3,731.39