Finding the Fourth Proportional to 78,320.98, 108,080.06 and 42,510.23

Step by Step Solution

1. Step 1: Write the proportion equation
   78,320.98 : 108,080.06 = 42,510.23 : x
2. Step 2: Convert to fraction form
   78,320.98/108,080.06 = 42,510.23/x
3. Step 3: Cross multiply
   78,320.98x = 108,080.06 × 42,510.23
4. Step 4: Simplify right side
   78,320.98x = 4,594,508,209.01
5. Step 5: Solve for x
   x = 4,594,508,209.01/78,320.98
6. Step 6: Final answer
   x = 58,662.55