Finding the Fourth Proportional to 31,211.52, 43,072.05 and 17,064.37

Step by Step Solution

1. Step 1: Write the proportion equation
   31,211.52 : 43,072.05 = 17,064.37 : x
2. Step 2: Convert to fraction form
   31,211.52/43,072.05 = 17,064.37/x
3. Step 3: Cross multiply
   31,211.52x = 43,072.05 × 17,064.37
4. Step 4: Simplify right side
   31,211.52x = 734,997,097.18
5. Step 5: Solve for x
   x = 734,997,097.18/31,211.52
6. Step 6: Final answer
   x = 23,548.90