Finding the Fourth Proportional to 109,651.10, 164,515.05 and 105,811.10

Step by Step Solution

1. Step 1: Write the proportion equation
   109,651.10 : 164,515.05 = 105,811.10 : x
2. Step 2: Convert to fraction form
   109,651.10/164,515.05 = 105,811.10/x
3. Step 3: Cross multiply
   109,651.10x = 164,515.05 × 105,811.10
4. Step 4: Simplify right side
   109,651.10x = 17,407,518,407.06
5. Step 5: Solve for x
   x = 17,407,518,407.06/109,651.10
6. Step 6: Final answer
   x = 158,753.71