Finding the Fourth Proportional to 52,397.19, 72,296.91 and 31,172.31

Step by Step Solution

1. Step 1: Write the proportion equation
   52,397.19 : 72,296.91 = 31,172.31 : x
2. Step 2: Convert to fraction form
   52,397.19/72,296.91 = 31,172.31/x
3. Step 3: Cross multiply
   52,397.19x = 72,296.91 × 31,172.31
4. Step 4: Simplify right side
   52,397.19x = 2,253,661,690.56
5. Step 5: Solve for x
   x = 2,253,661,690.56/52,397.19
6. Step 6: Final answer
   x = 43,011.12