Finding the Fourth Proportional to 89,978.36, 124,185.33 and 52,274.48

Step by Step Solution

1. Step 1: Write the proportion equation
   89,978.36 : 124,185.33 = 52,274.48 : x
2. Step 2: Convert to fraction form
   89,978.36/124,185.33 = 52,274.48/x
3. Step 3: Cross multiply
   89,978.36x = 124,185.33 × 52,274.48
4. Step 4: Simplify right side
   89,978.36x = 6,491,723,549.38
5. Step 5: Solve for x
   x = 6,491,723,549.38/89,978.36
6. Step 6: Final answer
   x = 72,147.61