Finding the Fourth Proportional to 143,810.98, 198,459.82 and 83,417.38

Step by Step Solution

1. Step 1: Write the proportion equation
   143,810.98 : 198,459.82 = 83,417.38 : x
2. Step 2: Convert to fraction form
   143,810.98/198,459.82 = 83,417.38/x
3. Step 3: Cross multiply
   143,810.98x = 198,459.82 × 83,417.38
4. Step 4: Simplify right side
   143,810.98x = 16,554,998,219.67
5. Step 5: Solve for x
   x = 16,554,998,219.67/143,810.98
6. Step 6: Final answer
   x = 115,116.37