Finding the Fourth Proportional to 9,928.42, 13,700.25 and 5,736.58

Step by Step Solution

1. Step 1: Write the proportion equation
   9,928.42 : 13,700.25 = 5,736.58 : x
2. Step 2: Convert to fraction form
   9,928.42/13,700.25 = 5,736.58/x
3. Step 3: Cross multiply
   9,928.42x = 13,700.25 × 5,736.58
4. Step 4: Simplify right side
   9,928.42x = 78,592,580.15
5. Step 5: Solve for x
   x = 78,592,580.15/9,928.42
6. Step 6: Final answer
   x = 7,915.92