Finding the Fourth Proportional to 52,276.32, 72,141.12 and 30,778.56

Step by Step Solution

1. Step 1: Write the proportion equation
   52,276.32 : 72,141.12 = 30,778.56 : x
2. Step 2: Convert to fraction form
   52,276.32/72,141.12 = 30,778.56/x
3. Step 3: Cross multiply
   52,276.32x = 72,141.12 × 30,778.56
4. Step 4: Simplify right side
   52,276.32x = 2,220,399,790.39
5. Step 5: Solve for x
   x = 2,220,399,790.39/52,276.32
6. Step 6: Final answer
   x = 42,474.29