Finding the Fourth Proportional to 52,338.29, 72,245.62 and 31,117.50

Step by Step Solution

1. Step 1: Write the proportion equation
   52,338.29 : 72,245.62 = 31,117.50 : x
2. Step 2: Convert to fraction form
   52,338.29/72,245.62 = 31,117.50/x
3. Step 3: Cross multiply
   52,338.29x = 72,245.62 × 31,117.50
4. Step 4: Simplify right side
   52,338.29x = 2,248,103,119.25
5. Step 5: Solve for x
   x = 2,248,103,119.25/52,338.29
6. Step 6: Final answer
   x = 42,953.32