Finding the Fourth Proportional to 78,795.28, 108,737.73 and 42,986.04

Step by Step Solution

1. Step 1: Write the proportion equation
   78,795.28 : 108,737.73 = 42,986.04 : x
2. Step 2: Convert to fraction form
   78,795.28/108,737.73 = 42,986.04/x
3. Step 3: Cross multiply
   78,795.28x = 108,737.73 × 42,986.04
4. Step 4: Simplify right side
   78,795.28x = 4,674,204,164.72
5. Step 5: Solve for x
   x = 4,674,204,164.72/78,795.28
6. Step 6: Final answer
   x = 59,320.87