Finding the Fourth Proportional to 139,393.83, 192,373.00 and 78,964.97

Step by Step Solution

1. Step 1: Write the proportion equation
   139,393.83 : 192,373.00 = 78,964.97 : x
2. Step 2: Convert to fraction form
   139,393.83/192,373.00 = 78,964.97/x
3. Step 3: Cross multiply
   139,393.83x = 192,373.00 × 78,964.97
4. Step 4: Simplify right side
   139,393.83x = 15,190,727,227.17
5. Step 5: Solve for x
   x = 15,190,727,227.17/139,393.83
6. Step 6: Final answer
   x = 108,977.04