Finding the Fourth Proportional to 143,938.27, 198,570.61 and 83,473.91

Step by Step Solution

1. Step 1: Write the proportion equation
   143,938.27 : 198,570.61 = 83,473.91 : x
2. Step 2: Convert to fraction form
   143,938.27/198,570.61 = 83,473.91/x
3. Step 3: Cross multiply
   143,938.27x = 198,570.61 × 83,473.91
4. Step 4: Simplify right side
   143,938.27x = 16,575,465,227.79
5. Step 5: Solve for x
   x = 16,575,465,227.79/143,938.27
6. Step 6: Final answer
   x = 115,156.76