Finding the Fourth Proportional to 108,055.25, 162,139.98 and 76,668.16

Step by Step Solution

1. Step 1: Write the proportion equation
   108,055.25 : 162,139.98 = 76,668.16 : x
2. Step 2: Convert to fraction form
   108,055.25/162,139.98 = 76,668.16/x
3. Step 3: Cross multiply
   108,055.25x = 162,139.98 × 76,668.16
4. Step 4: Simplify right side
   108,055.25x = 12,430,973,811.19
5. Step 5: Solve for x
   x = 12,430,973,811.19/108,055.25
6. Step 6: Final answer
   x = 115,042.75