Finding the Fourth Proportional to 81,978.93, 113,132.43 and 48,007.53

Step by Step Solution

1. Step 1: Write the proportion equation
   81,978.93 : 113,132.43 = 48,007.53 : x
2. Step 2: Convert to fraction form
   81,978.93/113,132.43 = 48,007.53/x
3. Step 3: Cross multiply
   81,978.93x = 113,132.43 × 48,007.53
4. Step 4: Simplify right side
   81,978.93x = 5,431,208,527.20
5. Step 5: Solve for x
   x = 5,431,208,527.20/81,978.93
6. Step 6: Final answer
   x = 66,251.27