Finding the Fourth Proportional to 89,100.50, 133,281.39 and 67,879.99

Step by Step Solution

1. Step 1: Write the proportion equation
   89,100.50 : 133,281.39 = 67,879.99 : x
2. Step 2: Convert to fraction form
   89,100.50/133,281.39 = 67,879.99/x
3. Step 3: Cross multiply
   89,100.50x = 133,281.39 × 67,879.99
4. Step 4: Simplify right side
   89,100.50x = 9,047,138,900.92
5. Step 5: Solve for x
   x = 9,047,138,900.92/89,100.50
6. Step 6: Final answer
   x = 101,538.59