Finding the Fourth Proportional to 143,696.17, 198,300.58 and 83,301.78

Step by Step Solution

1. Step 1: Write the proportion equation
   143,696.17 : 198,300.58 = 83,301.78 : x
2. Step 2: Convert to fraction form
   143,696.17/198,300.58 = 83,301.78/x
3. Step 3: Cross multiply
   143,696.17x = 198,300.58 × 83,301.78
4. Step 4: Simplify right side
   143,696.17x = 16,518,791,289.03
5. Step 5: Solve for x
   x = 16,518,791,289.03/143,696.17
6. Step 6: Final answer
   x = 114,956.38