Finding the Fourth Proportional to 200,799.86, 301,291.72 and 86,982.47

Step by Step Solution

1. Step 1: Write the proportion equation
   200,799.86 : 301,291.72 = 86,982.47 : x
2. Step 2: Convert to fraction form
   200,799.86/301,291.72 = 86,982.47/x
3. Step 3: Cross multiply
   200,799.86x = 301,291.72 × 86,982.47
4. Step 4: Simplify right side
   200,799.86x = 26,207,096,489.69
5. Step 5: Solve for x
   x = 26,207,096,489.69/200,799.86
6. Step 6: Final answer
   x = 130,513.52