Finding the Fourth Proportional to 78,772.86, 117,900.42 and 59,951.28

Step by Step Solution

1. Step 1: Write the proportion equation
   78,772.86 : 117,900.42 = 59,951.28 : x
2. Step 2: Convert to fraction form
   78,772.86/117,900.42 = 59,951.28/x
3. Step 3: Cross multiply
   78,772.86x = 117,900.42 × 59,951.28
4. Step 4: Simplify right side
   78,772.86x = 7,068,281,091.54
5. Step 5: Solve for x
   x = 7,068,281,091.54/78,772.86
6. Step 6: Final answer
   x = 89,729.90