Finding the Fourth Proportional to 52,253.31, 72,109.70 and 30,743.86

Step by Step Solution

1. Step 1: Write the proportion equation
   52,253.31 : 72,109.70 = 30,743.86 : x
2. Step 2: Convert to fraction form
   52,253.31/72,109.70 = 30,743.86/x
3. Step 3: Cross multiply
   52,253.31x = 72,109.70 × 30,743.86
4. Step 4: Simplify right side
   52,253.31x = 2,216,930,521.44
5. Step 5: Solve for x
   x = 2,216,930,521.44/52,253.31
6. Step 6: Final answer
   x = 42,426.60