Finding the Fourth Proportional to 143,788.56, 198,429.02 and 83,395

Step by Step Solution

1. Step 1: Write the proportion equation
   143,788.56 : 198,429.02 = 83,395 : x
2. Step 2: Convert to fraction form
   143,788.56/198,429.02 = 83,395/x
3. Step 3: Cross multiply
   143,788.56x = 198,429.02 × 83,395
4. Step 4: Simplify right side
   143,788.56x = 16,547,988,122.90
5. Step 5: Solve for x
   x = 16,547,988,122.90/143,788.56
6. Step 6: Final answer
   x = 115,085.57