Finding the Fourth Proportional to 52,638.62, 72,607.35 and 31,401.50

Step by Step Solution

1. Step 1: Write the proportion equation
   52,638.62 : 72,607.35 = 31,401.50 : x
2. Step 2: Convert to fraction form
   52,638.62/72,607.35 = 31,401.50/x
3. Step 3: Cross multiply
   52,638.62x = 72,607.35 × 31,401.50
4. Step 4: Simplify right side
   52,638.62x = 2,279,979,701.03
5. Step 5: Solve for x
   x = 2,279,979,701.03/52,638.62
6. Step 6: Final answer
   x = 43,313.82