Finding the Fourth Proportional to 10,880.64, 14,902.76 and 10,242.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,880.64 : 14,902.76 = 10,242.30 : x
2. Step 2: Convert to fraction form
   10,880.64/14,902.76 = 10,242.30/x
3. Step 3: Cross multiply
   10,880.64x = 14,902.76 × 10,242.30
4. Step 4: Simplify right side
   10,880.64x = 152,638,487.54
5. Step 5: Solve for x
   x = 152,638,487.54/10,880.64
6. Step 6: Final answer
   x = 14,028.45