Finding the Fourth Proportional to 78,397.10, 108,080.88 and 53,867.16

Step by Step Solution

1. Step 1: Write the proportion equation
   78,397.10 : 108,080.88 = 53,867.16 : x
2. Step 2: Convert to fraction form
   78,397.10/108,080.88 = 53,867.16/x
3. Step 3: Cross multiply
   78,397.10x = 108,080.88 × 53,867.16
4. Step 4: Simplify right side
   78,397.10x = 5,822,010,055.90
5. Step 5: Solve for x
   x = 5,822,010,055.90/78,397.10
6. Step 6: Final answer
   x = 74,263.08