Finding the Fourth Proportional to 13,258.88, 18,294.72 and 7,951.76

Step by Step Solution

1. Step 1: Write the proportion equation
   13,258.88 : 18,294.72 = 7,951.76 : x
2. Step 2: Convert to fraction form
   13,258.88/18,294.72 = 7,951.76/x
3. Step 3: Cross multiply
   13,258.88x = 18,294.72 × 7,951.76
4. Step 4: Simplify right side
   13,258.88x = 145,475,222.71
5. Step 5: Solve for x
   x = 145,475,222.71/13,258.88
6. Step 6: Final answer
   x = 10,971.91