Finding the Fourth Proportional to 78,707.16, 108,614.46 and 42,896.92

Step by Step Solution

1. Step 1: Write the proportion equation
   78,707.16 : 108,614.46 = 42,896.92 : x
2. Step 2: Convert to fraction form
   78,707.16/108,614.46 = 42,896.92/x
3. Step 3: Cross multiply
   78,707.16x = 108,614.46 × 42,896.92
4. Step 4: Simplify right side
   78,707.16x = 4,659,225,801.46
5. Step 5: Solve for x
   x = 4,659,225,801.46/78,707.16
6. Step 6: Final answer
   x = 59,196.98