Finding the Fourth Proportional to 78,920.37, 108,910.17 and 43,110.45

Step by Step Solution

1. Step 1: Write the proportion equation
   78,920.37 : 108,910.17 = 43,110.45 : x
2. Step 2: Convert to fraction form
   78,920.37/108,910.17 = 43,110.45/x
3. Step 3: Cross multiply
   78,920.37x = 108,910.17 × 43,110.45
4. Step 4: Simplify right side
   78,920.37x = 4,695,166,438.28
5. Step 5: Solve for x
   x = 4,695,166,438.28/78,920.37
6. Step 6: Final answer
   x = 59,492.45