Finding the Fourth Proportional to 122,100.16, 168,499.89 and 68,384.80

Step by Step Solution

1. Step 1: Write the proportion equation
   122,100.16 : 168,499.89 = 68,384.80 : x
2. Step 2: Convert to fraction form
   122,100.16/168,499.89 = 68,384.80/x
3. Step 3: Cross multiply
   122,100.16x = 168,499.89 × 68,384.80
4. Step 4: Simplify right side
   122,100.16x = 11,522,831,277.67
5. Step 5: Solve for x
   x = 11,522,831,277.67/122,100.16
6. Step 6: Final answer
   x = 94,371.96