Finding the Fourth Proportional to 10,915.84, 15,069.60 and 7,349.52

Step by Step Solution

1. Step 1: Write the proportion equation
   10,915.84 : 15,069.60 = 7,349.52 : x
2. Step 2: Convert to fraction form
   10,915.84/15,069.60 = 7,349.52/x
3. Step 3: Cross multiply
   10,915.84x = 15,069.60 × 7,349.52
4. Step 4: Simplify right side
   10,915.84x = 110,754,326.59
5. Step 5: Solve for x
   x = 110,754,326.59/10,915.84
6. Step 6: Final answer
   x = 10,146.20