Finding the Fourth Proportional to 52,871.04, 72,978.24 and 30,529.92

Step by Step Solution

1. Step 1: Write the proportion equation
   52,871.04 : 72,978.24 = 30,529.92 : x
2. Step 2: Convert to fraction form
   52,871.04/72,978.24 = 30,529.92/x
3. Step 3: Cross multiply
   52,871.04x = 72,978.24 × 30,529.92
4. Step 4: Simplify right side
   52,871.04x = 2,228,019,828.94
5. Step 5: Solve for x
   x = 2,228,019,828.94/52,871.04
6. Step 6: Final answer
   x = 42,140.65