Finding the Fourth Proportional to 10,863.02, 14,991.18 and 7,088.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,863.02 : 14,991.18 = 7,088.60 : x
2. Step 2: Convert to fraction form
   10,863.02/14,991.18 = 7,088.60/x
3. Step 3: Cross multiply
   10,863.02x = 14,991.18 × 7,088.60
4. Step 4: Simplify right side
   10,863.02x = 106,266,478.55
5. Step 5: Solve for x
   x = 106,266,478.55/10,863.02
6. Step 6: Final answer
   x = 9,782.41