Finding the Fourth Proportional to 89,938.59, 124,131.50 and 53,642.37

Step by Step Solution

1. Step 1: Write the proportion equation
   89,938.59 : 124,131.50 = 53,642.37 : x
2. Step 2: Convert to fraction form
   89,938.59/124,131.50 = 53,642.37/x
3. Step 3: Cross multiply
   89,938.59x = 124,131.50 × 53,642.37
4. Step 4: Simplify right side
   89,938.59x = 6,658,707,504.47
5. Step 5: Solve for x
   x = 6,658,707,504.47/89,938.59
6. Step 6: Final answer
   x = 74,036.15