Finding the Fourth Proportional to 118,309.89, 177,181.92 and 68,238.18

Step by Step Solution

1. Step 1: Write the proportion equation
   118,309.89 : 177,181.92 = 68,238.18 : x
2. Step 2: Convert to fraction form
   118,309.89/177,181.92 = 68,238.18/x
3. Step 3: Cross multiply
   118,309.89x = 177,181.92 × 68,238.18
4. Step 4: Simplify right side
   118,309.89x = 12,090,571,749.71
5. Step 5: Solve for x
   x = 12,090,571,749.71/118,309.89
6. Step 6: Final answer
   x = 102,194.09