Finding the Fourth Proportional to 86,830.80, 130,256.88 and 30,659.52

Step by Step Solution

1. Step 1: Write the proportion equation
   86,830.80 : 130,256.88 = 30,659.52 : x
2. Step 2: Convert to fraction form
   86,830.80/130,256.88 = 30,659.52/x
3. Step 3: Cross multiply
   86,830.80x = 130,256.88 × 30,659.52
4. Step 4: Simplify right side
   86,830.80x = 3,993,613,417.50
5. Step 5: Solve for x
   x = 3,993,613,417.50/86,830.80
6. Step 6: Final answer
   x = 45,993.05