Finding the Fourth Proportional to 478,058.72, 659,715.72 and 263,194.34

Step by Step Solution

1. Step 1: Write the proportion equation
   478,058.72 : 659,715.72 = 263,194.34 : x
2. Step 2: Convert to fraction form
   478,058.72/659,715.72 = 263,194.34/x
3. Step 3: Cross multiply
   478,058.72x = 659,715.72 × 263,194.34
4. Step 4: Simplify right side
   478,058.72x = 173,633,443,513.03
5. Step 5: Solve for x
   x = 173,633,443,513.03/478,058.72
6. Step 6: Final answer
   x = 363,205.26