Finding the Fourth Proportional to 72,850.52, 109,015.68 and 52,883.12

Step by Step Solution

1. Step 1: Write the proportion equation
   72,850.52 : 109,015.68 = 52,883.12 : x
2. Step 2: Convert to fraction form
   72,850.52/109,015.68 = 52,883.12/x
3. Step 3: Cross multiply
   72,850.52x = 109,015.68 × 52,883.12
4. Step 4: Simplify right side
   72,850.52x = 5,765,089,287.32
5. Step 5: Solve for x
   x = 5,765,089,287.32/72,850.52
6. Step 6: Final answer
   x = 79,135.87