Finding the Fourth Proportional to 8,873.42, 12,240.72 and 7,196.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,873.42 : 12,240.72 = 7,196.72 : x
2. Step 2: Convert to fraction form
   8,873.42/12,240.72 = 7,196.72/x
3. Step 3: Cross multiply
   8,873.42x = 12,240.72 × 7,196.72
4. Step 4: Simplify right side
   8,873.42x = 88,092,973.23
5. Step 5: Solve for x
   x = 88,092,973.23/8,873.42
6. Step 6: Final answer
   x = 9,927.74