Finding the Fourth Proportional to 52,636.62, 72,604.59 and 31,399.50

Step by Step Solution

1. Step 1: Write the proportion equation
   52,636.62 : 72,604.59 = 31,399.50 : x
2. Step 2: Convert to fraction form
   52,636.62/72,604.59 = 31,399.50/x
3. Step 3: Cross multiply
   52,636.62x = 72,604.59 × 31,399.50
4. Step 4: Simplify right side
   52,636.62x = 2,279,747,823.71
5. Step 5: Solve for x
   x = 2,279,747,823.71/52,636.62
6. Step 6: Final answer
   x = 43,311.06