Finding the Fourth Proportional to 78,606.46, 108,479.18 and 42,797.08

Step by Step Solution

1. Step 1: Write the proportion equation
   78,606.46 : 108,479.18 = 42,797.08 : x
2. Step 2: Convert to fraction form
   78,606.46/108,479.18 = 42,797.08/x
3. Step 3: Cross multiply
   78,606.46x = 108,479.18 × 42,797.08
4. Step 4: Simplify right side
   78,606.46x = 4,642,592,144.79
5. Step 5: Solve for x
   x = 4,642,592,144.79/78,606.46
6. Step 6: Final answer
   x = 59,061.20