Finding the Fourth Proportional to 79,200.32, 109,296.12 and 43,390.28

Step by Step Solution

1. Step 1: Write the proportion equation
   79,200.32 : 109,296.12 = 43,390.28 : x
2. Step 2: Convert to fraction form
   79,200.32/109,296.12 = 43,390.28/x
3. Step 3: Cross multiply
   79,200.32x = 109,296.12 × 43,390.28
4. Step 4: Simplify right side
   79,200.32x = 4,742,389,249.71
5. Step 5: Solve for x
   x = 4,742,389,249.71/79,200.32
6. Step 6: Final answer
   x = 59,878.41