Finding the Fourth Proportional to 31,556.16, 43,459.20 and 31,459.20

Step by Step Solution

1. Step 1: Write the proportion equation
   31,556.16 : 43,459.20 = 31,459.20 : x
2. Step 2: Convert to fraction form
   31,556.16/43,459.20 = 31,459.20/x
3. Step 3: Cross multiply
   31,556.16x = 43,459.20 × 31,459.20
4. Step 4: Simplify right side
   31,556.16x = 1,367,191,664.64
5. Step 5: Solve for x
   x = 1,367,191,664.64/31,556.16
6. Step 6: Final answer
   x = 43,325.67