Finding the Fourth Proportional to 78,608.14, 108,479.64 and 42,798.04

Step by Step Solution

1. Step 1: Write the proportion equation
   78,608.14 : 108,479.64 = 42,798.04 : x
2. Step 2: Convert to fraction form
   78,608.14/108,479.64 = 42,798.04/x
3. Step 3: Cross multiply
   78,608.14x = 108,479.64 × 42,798.04
4. Step 4: Simplify right side
   78,608.14x = 4,642,715,861.20
5. Step 5: Solve for x
   x = 4,642,715,861.20/78,608.14
6. Step 6: Final answer
   x = 59,061.52