Finding the Fourth Proportional to 140,128.50, 193,377.33 and 89,827.50

Step by Step Solution

1. Step 1: Write the proportion equation
   140,128.50 : 193,377.33 = 89,827.50 : x
2. Step 2: Convert to fraction form
   140,128.50/193,377.33 = 89,827.50/x
3. Step 3: Cross multiply
   140,128.50x = 193,377.33 × 89,827.50
4. Step 4: Simplify right side
   140,128.50x = 17,370,602,110.58
5. Step 5: Solve for x
   x = 17,370,602,110.58/140,128.50
6. Step 6: Final answer
   x = 123,961.95