Finding the Fourth Proportional to 653,018.72, 901,135.50 and 362,648.72

Step by Step Solution

1. Step 1: Write the proportion equation
   653,018.72 : 901,135.50 = 362,648.72 : x
2. Step 2: Convert to fraction form
   653,018.72/901,135.50 = 362,648.72/x
3. Step 3: Cross multiply
   653,018.72x = 901,135.50 × 362,648.72
4. Step 4: Simplify right side
   653,018.72x = 326,795,635,621.56
5. Step 5: Solve for x
   x = 326,795,635,621.56/653,018.72
6. Step 6: Final answer
   x = 500,438.39