Finding the Fourth Proportional to 8,875.58, 13,243.76 and 7,944.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,875.58 : 13,243.76 = 7,944.72 : x
2. Step 2: Convert to fraction form
   8,875.58/13,243.76 = 7,944.72/x
3. Step 3: Cross multiply
   8,875.58x = 13,243.76 × 7,944.72
4. Step 4: Simplify right side
   8,875.58x = 105,217,964.95
5. Step 5: Solve for x
   x = 105,217,964.95/8,875.58
6. Step 6: Final answer
   x = 11,854.77