Finding the Fourth Proportional to 10,242.59, 15,361.18 and 7,272.32

Step by Step Solution

1. Step 1: Write the proportion equation
   10,242.59 : 15,361.18 = 7,272.32 : x
2. Step 2: Convert to fraction form
   10,242.59/15,361.18 = 7,272.32/x
3. Step 3: Cross multiply
   10,242.59x = 15,361.18 × 7,272.32
4. Step 4: Simplify right side
   10,242.59x = 111,711,321.55
5. Step 5: Solve for x
   x = 111,711,321.55/10,242.59
6. Step 6: Final answer
   x = 10,906.56