Finding the Fourth Proportional to 79,216.40, 109,318.00 and 43,406.31

Step by Step Solution

1. Step 1: Write the proportion equation
   79,216.40 : 109,318.00 = 43,406.31 : x
2. Step 2: Convert to fraction form
   79,216.40/109,318.00 = 43,406.31/x
3. Step 3: Cross multiply
   79,216.40x = 109,318.00 × 43,406.31
4. Step 4: Simplify right side
   79,216.40x = 4,745,090,779.55
5. Step 5: Solve for x
   x = 4,745,090,779.55/79,216.40
6. Step 6: Final answer
   x = 59,900.36