Finding the Fourth Proportional to 78,622.17, 108,498.63 and 42,812.18

Step by Step Solution

1. Step 1: Write the proportion equation
   78,622.17 : 108,498.63 = 42,812.18 : x
2. Step 2: Convert to fraction form
   78,622.17/108,498.63 = 42,812.18/x
3. Step 3: Cross multiply
   78,622.17x = 108,498.63 × 42,812.18
4. Step 4: Simplify right side
   78,622.17x = 4,645,062,334.82
5. Step 5: Solve for x
   x = 4,645,062,334.82/78,622.17
6. Step 6: Final answer
   x = 59,080.82