Finding the Fourth Proportional to 141,796.63, 195,683.46 and 78,138.53

Step by Step Solution

1. Step 1: Write the proportion equation
   141,796.63 : 195,683.46 = 78,138.53 : x
2. Step 2: Convert to fraction form
   141,796.63/195,683.46 = 78,138.53/x
3. Step 3: Cross multiply
   141,796.63x = 195,683.46 × 78,138.53
4. Step 4: Simplify right side
   141,796.63x = 15,290,416,931.30
5. Step 5: Solve for x
   x = 15,290,416,931.30/141,796.63
6. Step 6: Final answer
   x = 107,833.43