Finding the Fourth Proportional to 141,818.42, 195,710.76 and 78,158.54

Step by Step Solution

1. Step 1: Write the proportion equation
   141,818.42 : 195,710.76 = 78,158.54 : x
2. Step 2: Convert to fraction form
   141,818.42/195,710.76 = 78,158.54/x
3. Step 3: Cross multiply
   141,818.42x = 195,710.76 × 78,158.54
4. Step 4: Simplify right side
   141,818.42x = 15,296,467,263.89
5. Step 5: Solve for x
   x = 15,296,467,263.89/141,818.42
6. Step 6: Final answer
   x = 107,859.52