Finding the Fourth Proportional to 10,196.86, 15,292.12 and 4,928.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,196.86 : 15,292.12 = 4,928.60 : x
2. Step 2: Convert to fraction form
   10,196.86/15,292.12 = 4,928.60/x
3. Step 3: Cross multiply
   10,196.86x = 15,292.12 × 4,928.60
4. Step 4: Simplify right side
   10,196.86x = 75,368,742.63
5. Step 5: Solve for x
   x = 75,368,742.63/10,196.86
6. Step 6: Final answer
   x = 7,391.37