Finding the Fourth Proportional to 118,960.16, 164,217.18 and 83,290.04

Step by Step Solution

1. Step 1: Write the proportion equation
   118,960.16 : 164,217.18 = 83,290.04 : x
2. Step 2: Convert to fraction form
   118,960.16/164,217.18 = 83,290.04/x
3. Step 3: Cross multiply
   118,960.16x = 164,217.18 × 83,290.04
4. Step 4: Simplify right side
   118,960.16x = 13,677,655,490.89
5. Step 5: Solve for x
   x = 13,677,655,490.89/118,960.16
6. Step 6: Final answer
   x = 114,976.77