Finding the Fourth Proportional to 89,930.31, 124,118.84 and 85,944.39

Step by Step Solution

1. Step 1: Write the proportion equation
   89,930.31 : 124,118.84 = 85,944.39 : x
2. Step 2: Convert to fraction form
   89,930.31/124,118.84 = 85,944.39/x
3. Step 3: Cross multiply
   89,930.31x = 124,118.84 × 85,944.39
4. Step 4: Simplify right side
   89,930.31x = 10,667,317,561.59
5. Step 5: Solve for x
   x = 10,667,317,561.59/89,930.31
6. Step 6: Final answer
   x = 118,617.60