Finding the Fourth Proportional to 86,978.83, 130,452.83 and 39,582.89

Step by Step Solution

1. Step 1: Write the proportion equation
   86,978.83 : 130,452.83 = 39,582.89 : x
2. Step 2: Convert to fraction form
   86,978.83/130,452.83 = 39,582.89/x
3. Step 3: Cross multiply
   86,978.83x = 130,452.83 × 39,582.89
4. Step 4: Simplify right side
   86,978.83x = 5,163,699,822.16
5. Step 5: Solve for x
   x = 5,163,699,822.16/86,978.83
6. Step 6: Final answer
   x = 59,367.32