Finding the Fourth Proportional to 143,372.30, 197,864.17 and 86,014.10

Step by Step Solution

1. Step 1: Write the proportion equation
   143,372.30 : 197,864.17 = 86,014.10 : x
2. Step 2: Convert to fraction form
   143,372.30/197,864.17 = 86,014.10/x
3. Step 3: Cross multiply
   143,372.30x = 197,864.17 × 86,014.10
4. Step 4: Simplify right side
   143,372.30x = 17,019,108,784.42
5. Step 5: Solve for x
   x = 17,019,108,784.42/143,372.30
6. Step 6: Final answer
   x = 118,705.70