Finding the Fourth Proportional to 109,360.10, 164,234.55 and 79,811.30

Step by Step Solution

1. Step 1: Write the proportion equation
   109,360.10 : 164,234.55 = 79,811.30 : x
2. Step 2: Convert to fraction form
   109,360.10/164,234.55 = 79,811.30/x
3. Step 3: Cross multiply
   109,360.10x = 164,234.55 × 79,811.30
4. Step 4: Simplify right side
   109,360.10x = 13,107,772,940.42
5. Step 5: Solve for x
   x = 13,107,772,940.42/109,360.10
6. Step 6: Final answer
   x = 119,858.82