Finding the Fourth Proportional to 78,685.32, 108,586.20 and 46,855.56

Step by Step Solution

1. Step 1: Write the proportion equation
   78,685.32 : 108,586.20 = 46,855.56 : x
2. Step 2: Convert to fraction form
   78,685.32/108,586.20 = 46,855.56/x
3. Step 3: Cross multiply
   78,685.32x = 108,586.20 × 46,855.56
4. Step 4: Simplify right side
   78,685.32x = 5,087,867,209.27
5. Step 5: Solve for x
   x = 5,087,867,209.27/78,685.32
6. Step 6: Final answer
   x = 64,660.95