Finding the Fourth Proportional to 31,211.28, 43,071.56 and 17,064.12

Step by Step Solution

1. Step 1: Write the proportion equation
   31,211.28 : 43,071.56 = 17,064.12 : x
2. Step 2: Convert to fraction form
   31,211.28/43,071.56 = 17,064.12/x
3. Step 3: Cross multiply
   31,211.28x = 43,071.56 × 17,064.12
4. Step 4: Simplify right side
   31,211.28x = 734,978,268.43
5. Step 5: Solve for x
   x = 734,978,268.43/31,211.28
6. Step 6: Final answer
   x = 23,548.48