Finding the Fourth Proportional to 425,196.57, 586,751.82 and 243,897.09

Step by Step Solution

1. Step 1: Write the proportion equation
   425,196.57 : 586,751.82 = 243,897.09 : x
2. Step 2: Convert to fraction form
   425,196.57/586,751.82 = 243,897.09/x
3. Step 3: Cross multiply
   425,196.57x = 586,751.82 × 243,897.09
4. Step 4: Simplify right side
   425,196.57x = 143,107,061,450.20
5. Step 5: Solve for x
   x = 143,107,061,450.20/425,196.57
6. Step 6: Final answer
   x = 336,566.83