Finding the Fourth Proportional to 56,712.79, 78,268.17 and 32,839.89

Step by Step Solution

1. Step 1: Write the proportion equation
   56,712.79 : 78,268.17 = 32,839.89 : x
2. Step 2: Convert to fraction form
   56,712.79/78,268.17 = 32,839.89/x
3. Step 3: Cross multiply
   56,712.79x = 78,268.17 × 32,839.89
4. Step 4: Simplify right side
   56,712.79x = 2,570,318,093.30
5. Step 5: Solve for x
   x = 2,570,318,093.30/56,712.79
6. Step 6: Final answer
   x = 45,321.67