Finding the Fourth Proportional to 143,919.10, 198,588.27 and 83,494.72

Step by Step Solution

1. Step 1: Write the proportion equation
   143,919.10 : 198,588.27 = 83,494.72 : x
2. Step 2: Convert to fraction form
   143,919.10/198,588.27 = 83,494.72/x
3. Step 3: Cross multiply
   143,919.10x = 198,588.27 × 83,494.72
4. Step 4: Simplify right side
   143,919.10x = 16,581,071,998.93
5. Step 5: Solve for x
   x = 16,581,071,998.93/143,919.10
6. Step 6: Final answer
   x = 115,211.06