Finding the Fourth Proportional to 86,216.52, 118,978.76 and 48,491.56

Step by Step Solution

1. Step 1: Write the proportion equation
   86,216.52 : 118,978.76 = 48,491.56 : x
2. Step 2: Convert to fraction form
   86,216.52/118,978.76 = 48,491.56/x
3. Step 3: Cross multiply
   86,216.52x = 118,978.76 × 48,491.56
4. Step 4: Simplify right side
   86,216.52x = 5,769,465,679.27
5. Step 5: Solve for x
   x = 5,769,465,679.27/86,216.52
6. Step 6: Final answer
   x = 66,918.33