Finding the Fourth Proportional to 86,687, 130,068.06 and 30,567.20

Step by Step Solution

1. Step 1: Write the proportion equation
   86,687 : 130,068.06 = 30,567.20 : x
2. Step 2: Convert to fraction form
   86,687/130,068.06 = 30,567.20/x
3. Step 3: Cross multiply
   86,687x = 130,068.06 × 30,567.20
4. Step 4: Simplify right side
   86,687x = 3,975,815,753.29
5. Step 5: Solve for x
   x = 3,975,815,753.29/86,687
6. Step 6: Final answer
   x = 45,864.04