Finding the Fourth Proportional to 141,967.89, 195,914.90 and 77,436.81

Step by Step Solution

1. Step 1: Write the proportion equation
   141,967.89 : 195,914.90 = 77,436.81 : x
2. Step 2: Convert to fraction form
   141,967.89/195,914.90 = 77,436.81/x
3. Step 3: Cross multiply
   141,967.89x = 195,914.90 × 77,436.81
4. Step 4: Simplify right side
   141,967.89x = 15,171,025,081.06
5. Step 5: Solve for x
   x = 15,171,025,081.06/141,967.89
6. Step 6: Final answer
   x = 106,862.37