Finding the Fourth Proportional to 57,713.72, 79,678.05 and 43,994.04

Step by Step Solution

1. Step 1: Write the proportion equation
   57,713.72 : 79,678.05 = 43,994.04 : x
2. Step 2: Convert to fraction form
   57,713.72/79,678.05 = 43,994.04/x
3. Step 3: Cross multiply
   57,713.72x = 79,678.05 × 43,994.04
4. Step 4: Simplify right side
   57,713.72x = 3,505,359,318.82
5. Step 5: Solve for x
   x = 3,505,359,318.82/57,713.72
6. Step 6: Final answer
   x = 60,737.02