Finding the Fourth Proportional to 118,892.42, 164,044.59 and 80,657.18

Step by Step Solution

1. Step 1: Write the proportion equation
   118,892.42 : 164,044.59 = 80,657.18 : x
2. Step 2: Convert to fraction form
   118,892.42/164,044.59 = 80,657.18/x
3. Step 3: Cross multiply
   118,892.42x = 164,044.59 × 80,657.18
4. Step 4: Simplify right side
   118,892.42x = 13,231,374,023.66
5. Step 5: Solve for x
   x = 13,231,374,023.66/118,892.42
6. Step 6: Final answer
   x = 111,288.63