Finding the Fourth Proportional to 141,680.05, 195,518.17 and 77,148.29

Step by Step Solution

1. Step 1: Write the proportion equation
   141,680.05 : 195,518.17 = 77,148.29 : x
2. Step 2: Convert to fraction form
   141,680.05/195,518.17 = 77,148.29/x
3. Step 3: Cross multiply
   141,680.05x = 195,518.17 × 77,148.29
4. Step 4: Simplify right side
   141,680.05x = 15,083,892,479.43
5. Step 5: Solve for x
   x = 15,083,892,479.43/141,680.05
6. Step 6: Final answer
   x = 106,464.48