Finding the Fourth Proportional to 118,411.50, 163,480.77 and 76,044.72

Step by Step Solution

1. Step 1: Write the proportion equation
   118,411.50 : 163,480.77 = 76,044.72 : x
2. Step 2: Convert to fraction form
   118,411.50/163,480.77 = 76,044.72/x
3. Step 3: Cross multiply
   118,411.50x = 163,480.77 × 76,044.72
4. Step 4: Simplify right side
   118,411.50x = 12,431,849,380.03
5. Step 5: Solve for x
   x = 12,431,849,380.03/118,411.50
6. Step 6: Final answer
   x = 104,988.53