Finding the Fourth Proportional to 78,799, 108,727.75 and 46,970.86

Step by Step Solution

1. Step 1: Write the proportion equation
   78,799 : 108,727.75 = 46,970.86 : x
2. Step 2: Convert to fraction form
   78,799/108,727.75 = 46,970.86/x
3. Step 3: Cross multiply
   78,799x = 108,727.75 × 46,970.86
4. Step 4: Simplify right side
   78,799x = 5,107,035,923.37
5. Step 5: Solve for x
   x = 5,107,035,923.37/78,799
6. Step 6: Final answer
   x = 64,810.92