Finding the Fourth Proportional to 79,070.16, 109,326.78 and 69,105.64

Step by Step Solution

1. Step 1: Write the proportion equation
   79,070.16 : 109,326.78 = 69,105.64 : x
2. Step 2: Convert to fraction form
   79,070.16/109,326.78 = 69,105.64/x
3. Step 3: Cross multiply
   79,070.16x = 109,326.78 × 69,105.64
4. Step 4: Simplify right side
   79,070.16x = 7,555,097,101.04
5. Step 5: Solve for x
   x = 7,555,097,101.04/79,070.16
6. Step 6: Final answer
   x = 95,549.28