Finding the Fourth Proportional to 108,587.23, 162,700.82 and 76,839.99

Step by Step Solution

1. Step 1: Write the proportion equation
   108,587.23 : 162,700.82 = 76,839.99 : x
2. Step 2: Convert to fraction form
   108,587.23/162,700.82 = 76,839.99/x
3. Step 3: Cross multiply
   108,587.23x = 162,700.82 × 76,839.99
4. Step 4: Simplify right side
   108,587.23x = 12,501,928,675.61
5. Step 5: Solve for x
   x = 12,501,928,675.61/108,587.23
6. Step 6: Final answer
   x = 115,132.59