Finding the Fourth Proportional to 141,779.79, 195,664.82 and 78,117.57

Step by Step Solution

1. Step 1: Write the proportion equation
   141,779.79 : 195,664.82 = 78,117.57 : x
2. Step 2: Convert to fraction form
   141,779.79/195,664.82 = 78,117.57/x
3. Step 3: Cross multiply
   141,779.79x = 195,664.82 × 78,117.57
4. Step 4: Simplify right side
   141,779.79x = 15,284,860,272.89
5. Step 5: Solve for x
   x = 15,284,860,272.89/141,779.79
6. Step 6: Final answer
   x = 107,807.05