Finding the Fourth Proportional to 79,451.34, 109,643.50 and 43,642.16

Step by Step Solution

1. Step 1: Write the proportion equation
   79,451.34 : 109,643.50 = 43,642.16 : x
2. Step 2: Convert to fraction form
   79,451.34/109,643.50 = 43,642.16/x
3. Step 3: Cross multiply
   79,451.34x = 109,643.50 × 43,642.16
4. Step 4: Simplify right side
   79,451.34x = 4,785,079,169.96
5. Step 5: Solve for x
   x = 4,785,079,169.96/79,451.34
6. Step 6: Final answer
   x = 60,226.54