Finding the Fourth Proportional to 109,819.06, 164,910.76 and 68,528.50

Step by Step Solution

1. Step 1: Write the proportion equation
   109,819.06 : 164,910.76 = 68,528.50 : x
2. Step 2: Convert to fraction form
   109,819.06/164,910.76 = 68,528.50/x
3. Step 3: Cross multiply
   109,819.06x = 164,910.76 × 68,528.50
4. Step 4: Simplify right side
   109,819.06x = 11,301,087,016.66
5. Step 5: Solve for x
   x = 11,301,087,016.66/109,819.06
6. Step 6: Final answer
   x = 102,906.43