Finding the Fourth Proportional to 9,951.51, 14,862.89 and 7,873.86

Step by Step Solution

1. Step 1: Write the proportion equation
   9,951.51 : 14,862.89 = 7,873.86 : x
2. Step 2: Convert to fraction form
   9,951.51/14,862.89 = 7,873.86/x
3. Step 3: Cross multiply
   9,951.51x = 14,862.89 × 7,873.86
4. Step 4: Simplify right side
   9,951.51x = 117,028,275.69
5. Step 5: Solve for x
   x = 117,028,275.69/9,951.51
6. Step 6: Final answer
   x = 11,759.85