Finding the Fourth Proportional to 141,648.72, 195,476.41 and 77,118.40

Step by Step Solution

1. Step 1: Write the proportion equation
   141,648.72 : 195,476.41 = 77,118.40 : x
2. Step 2: Convert to fraction form
   141,648.72/195,476.41 = 77,118.40/x
3. Step 3: Cross multiply
   141,648.72x = 195,476.41 × 77,118.40
4. Step 4: Simplify right side
   141,648.72x = 15,074,826,784.34
5. Step 5: Solve for x
   x = 15,074,826,784.34/141,648.72
6. Step 6: Final answer
   x = 106,424.03