Finding the Fourth Proportional to 78,320.47, 108,082.35 and 42,510.48

Step by Step Solution

1. Step 1: Write the proportion equation
   78,320.47 : 108,082.35 = 42,510.48 : x
2. Step 2: Convert to fraction form
   78,320.47/108,082.35 = 42,510.48/x
3. Step 3: Cross multiply
   78,320.47x = 108,082.35 × 42,510.48
4. Step 4: Simplify right side
   78,320.47x = 4,594,632,578.03
5. Step 5: Solve for x
   x = 4,594,632,578.03/78,320.47
6. Step 6: Final answer
   x = 58,664.52