Finding the Fourth Proportional to 198,888.59, 274,495.17 and 111,683.46

Step by Step Solution

1. Step 1: Write the proportion equation
   198,888.59 : 274,495.17 = 111,683.46 : x
2. Step 2: Convert to fraction form
   198,888.59/274,495.17 = 111,683.46/x
3. Step 3: Cross multiply
   198,888.59x = 274,495.17 × 111,683.46
4. Step 4: Simplify right side
   198,888.59x = 30,656,570,338.89
5. Step 5: Solve for x
   x = 30,656,570,338.89/198,888.59
6. Step 6: Final answer
   x = 154,139.42