Finding the Fourth Proportional to 78,910.77, 108,895.10 and 43,100.91

Step by Step Solution

1. Step 1: Write the proportion equation
   78,910.77 : 108,895.10 = 43,100.91 : x
2. Step 2: Convert to fraction form
   78,910.77/108,895.10 = 43,100.91/x
3. Step 3: Cross multiply
   78,910.77x = 108,895.10 × 43,100.91
4. Step 4: Simplify right side
   78,910.77x = 4,693,477,904.54
5. Step 5: Solve for x
   x = 4,693,477,904.54/78,910.77
6. Step 6: Final answer
   x = 59,478.29