Finding the Fourth Proportional to 359,401.55, 537,980.48 and 264,738.47

Step by Step Solution

1. Step 1: Write the proportion equation
   359,401.55 : 537,980.48 = 264,738.47 : x
2. Step 2: Convert to fraction form
   359,401.55/537,980.48 = 264,738.47/x
3. Step 3: Cross multiply
   359,401.55x = 537,980.48 × 264,738.47
4. Step 4: Simplify right side
   359,401.55x = 142,424,127,841.37
5. Step 5: Solve for x
   x = 142,424,127,841.37/359,401.55
6. Step 6: Final answer
   x = 396,281.34