Finding the Fourth Proportional to 109,520.10, 164,317.01 and 108,781.99

Step by Step Solution

1. Step 1: Write the proportion equation
   109,520.10 : 164,317.01 = 108,781.99 : x
2. Step 2: Convert to fraction form
   109,520.10/164,317.01 = 108,781.99/x
3. Step 3: Cross multiply
   109,520.10x = 164,317.01 × 108,781.99
4. Step 4: Simplify right side
   109,520.10x = 17,874,730,383.95
5. Step 5: Solve for x
   x = 17,874,730,383.95/109,520.10
6. Step 6: Final answer
   x = 163,209.59