Finding the Fourth Proportional to 111,812.57, 167,718.86 and 76,645.61

Step by Step Solution

1. Step 1: Write the proportion equation
   111,812.57 : 167,718.86 = 76,645.61 : x
2. Step 2: Convert to fraction form
   111,812.57/167,718.86 = 76,645.61/x
3. Step 3: Cross multiply
   111,812.57x = 167,718.86 × 76,645.61
4. Step 4: Simplify right side
   111,812.57x = 12,854,913,111.38
5. Step 5: Solve for x
   x = 12,854,913,111.38/111,812.57
6. Step 6: Final answer
   x = 114,968.41