Finding the Fourth Proportional to 387,061.56, 580,628.96 and 150,422.48

Step by Step Solution

1. Step 1: Write the proportion equation
   387,061.56 : 580,628.96 = 150,422.48 : x
2. Step 2: Convert to fraction form
   387,061.56/580,628.96 = 150,422.48/x
3. Step 3: Cross multiply
   387,061.56x = 580,628.96 × 150,422.48
4. Step 4: Simplify right side
   387,061.56x = 87,339,648,123.02
5. Step 5: Solve for x
   x = 87,339,648,123.02/387,061.56
6. Step 6: Final answer
   x = 225,647.95