Finding the Fourth Proportional to 83,148.78, 124,754.15 and 49,892.71

Step by Step Solution

1. Step 1: Write the proportion equation
   83,148.78 : 124,754.15 = 49,892.71 : x
2. Step 2: Convert to fraction form
   83,148.78/124,754.15 = 49,892.71/x
3. Step 3: Cross multiply
   83,148.78x = 124,754.15 × 49,892.71
4. Step 4: Simplify right side
   83,148.78x = 6,224,322,627.25
5. Step 5: Solve for x
   x = 6,224,322,627.25/83,148.78
6. Step 6: Final answer
   x = 74,857.65