Finding the Fourth Proportional to 141,488.50, 195,281.86 and 81,099.62

Step by Step Solution

1. Step 1: Write the proportion equation
   141,488.50 : 195,281.86 = 81,099.62 : x
2. Step 2: Convert to fraction form
   141,488.50/195,281.86 = 81,099.62/x
3. Step 3: Cross multiply
   141,488.50x = 195,281.86 × 81,099.62
4. Step 4: Simplify right side
   141,488.50x = 15,837,284,638.89
5. Step 5: Solve for x
   x = 15,837,284,638.89/141,488.50
6. Step 6: Final answer
   x = 111,933.37