Finding the Fourth Proportional to 141,910.56, 195,870.69 and 85,311

Step by Step Solution

1. Step 1: Write the proportion equation
   141,910.56 : 195,870.69 = 85,311 : x
2. Step 2: Convert to fraction form
   141,910.56/195,870.69 = 85,311/x
3. Step 3: Cross multiply
   141,910.56x = 195,870.69 × 85,311
4. Step 4: Simplify right side
   141,910.56x = 16,709,924,434.59
5. Step 5: Solve for x
   x = 16,709,924,434.59/141,910.56
6. Step 6: Final answer
   x = 117,749.69