Finding the Fourth Proportional to 78,320.04, 108,079.94 and 42,510.12

Step by Step Solution

1. Step 1: Write the proportion equation
   78,320.04 : 108,079.94 = 42,510.12 : x
2. Step 2: Convert to fraction form
   78,320.04/108,079.94 = 42,510.12/x
3. Step 3: Cross multiply
   78,320.04x = 108,079.94 × 42,510.12
4. Step 4: Simplify right side
   78,320.04x = 4,594,491,218.99
5. Step 5: Solve for x
   x = 4,594,491,218.99/78,320.04
6. Step 6: Final answer
   x = 58,663.03