Finding the Fourth Proportional to 78,826.74, 108,773.49 and 46,989.30

Step by Step Solution

1. Step 1: Write the proportion equation
   78,826.74 : 108,773.49 = 46,989.30 : x
2. Step 2: Convert to fraction form
   78,826.74/108,773.49 = 46,989.30/x
3. Step 3: Cross multiply
   78,826.74x = 108,773.49 × 46,989.30
4. Step 4: Simplify right side
   78,826.74x = 5,111,190,153.66
5. Step 5: Solve for x
   x = 5,111,190,153.66/78,826.74
6. Step 6: Final answer
   x = 64,840.82