Finding the Fourth Proportional to 149,667.48, 206,540.70 and 82,599

Step by Step Solution

1. Step 1: Write the proportion equation
   149,667.48 : 206,540.70 = 82,599 : x
2. Step 2: Convert to fraction form
   149,667.48/206,540.70 = 82,599/x
3. Step 3: Cross multiply
   149,667.48x = 206,540.70 × 82,599
4. Step 4: Simplify right side
   149,667.48x = 17,060,055,279.30
5. Step 5: Solve for x
   x = 17,060,055,279.30/149,667.48
6. Step 6: Final answer
   x = 113,986.39