Finding the Fourth Proportional to 910,938.72, 1,366,524.72 and 349,900.32

Step by Step Solution

1. Step 1: Write the proportion equation
   910,938.72 : 1,366,524.72 = 349,900.32 : x
2. Step 2: Convert to fraction form
   910,938.72/1,366,524.72 = 349,900.32/x
3. Step 3: Cross multiply
   910,938.72x = 1,366,524.72 × 349,900.32
4. Step 4: Simplify right side
   910,938.72x = 478,147,436,815.91
5. Step 5: Solve for x
   x = 478,147,436,815.91/910,938.72
6. Step 6: Final answer
   x = 524,895.28