Finding the Fourth Proportional to 116,996.40, 161,411.74 and 76,732.52

Step by Step Solution

1. Step 1: Write the proportion equation
   116,996.40 : 161,411.74 = 76,732.52 : x
2. Step 2: Convert to fraction form
   116,996.40/161,411.74 = 76,732.52/x
3. Step 3: Cross multiply
   116,996.40x = 161,411.74 × 76,732.52
4. Step 4: Simplify right side
   116,996.40x = 12,385,528,568.89
5. Step 5: Solve for x
   x = 12,385,528,568.89/116,996.40
6. Step 6: Final answer
   x = 105,862.48