Finding the Fourth Proportional to 142,616.72, 196,803.59 and 78,073.59

Step by Step Solution

1. Step 1: Write the proportion equation
   142,616.72 : 196,803.59 = 78,073.59 : x
2. Step 2: Convert to fraction form
   142,616.72/196,803.59 = 78,073.59/x
3. Step 3: Cross multiply
   142,616.72x = 196,803.59 × 78,073.59
4. Step 4: Simplify right side
   142,616.72x = 15,365,163,143.83
5. Step 5: Solve for x
   x = 15,365,163,143.83/142,616.72
6. Step 6: Final answer
   x = 107,737.46