Finding the Fourth Proportional to 78,622, 108,495.11 and 42,811.93

Step by Step Solution

1. Step 1: Write the proportion equation
   78,622 : 108,495.11 = 42,811.93 : x
2. Step 2: Convert to fraction form
   78,622/108,495.11 = 42,811.93/x
3. Step 3: Cross multiply
   78,622x = 108,495.11 × 42,811.93
4. Step 4: Simplify right side
   78,622x = 4,644,885,054.66
5. Step 5: Solve for x
   x = 4,644,885,054.66/78,622
6. Step 6: Final answer
   x = 59,078.69