Finding the Fourth Proportional to 78,727.50, 108,646.57 and 46,892.07

Step by Step Solution

1. Step 1: Write the proportion equation
   78,727.50 : 108,646.57 = 46,892.07 : x
2. Step 2: Convert to fraction form
   78,727.50/108,646.57 = 46,892.07/x
3. Step 3: Cross multiply
   78,727.50x = 108,646.57 × 46,892.07
4. Step 4: Simplify right side
   78,727.50x = 5,094,662,565.70
5. Step 5: Solve for x
   x = 5,094,662,565.70/78,727.50
6. Step 6: Final answer
   x = 64,712.62