Finding the Fourth Proportional to 387,111.56, 580,704.06 and 150,472.52

Step by Step Solution

1. Step 1: Write the proportion equation
   387,111.56 : 580,704.06 = 150,472.52 : x
2. Step 2: Convert to fraction form
   387,111.56/580,704.06 = 150,472.52/x
3. Step 3: Cross multiply
   387,111.56x = 580,704.06 × 150,472.52
4. Step 4: Simplify right side
   387,111.56x = 87,380,003,282.43
5. Step 5: Solve for x
   x = 87,380,003,282.43/387,111.56
6. Step 6: Final answer
   x = 225,723.05