Finding the Fourth Proportional to 140,111.25, 193,353.57 and 89,810.25

Step by Step Solution

1. Step 1: Write the proportion equation
   140,111.25 : 193,353.57 = 89,810.25 : x
2. Step 2: Convert to fraction form
   140,111.25/193,353.57 = 89,810.25/x
3. Step 3: Cross multiply
   140,111.25x = 193,353.57 × 89,810.25
4. Step 4: Simplify right side
   140,111.25x = 17,365,132,460.09
5. Step 5: Solve for x
   x = 17,365,132,460.09/140,111.25
6. Step 6: Final answer
   x = 123,938.17