Finding the Fourth Proportional to 86,002.57, 118,686.49 and 47,762.72

Step by Step Solution

1. Step 1: Write the proportion equation
   86,002.57 : 118,686.49 = 47,762.72 : x
2. Step 2: Convert to fraction form
   86,002.57/118,686.49 = 47,762.72/x
3. Step 3: Cross multiply
   86,002.57x = 118,686.49 × 47,762.72
4. Step 4: Simplify right side
   86,002.57x = 5,668,789,589.65
5. Step 5: Solve for x
   x = 5,668,789,589.65/86,002.57
6. Step 6: Final answer
   x = 65,914.19