Finding the Fourth Proportional to 451,915.52, 623,698.72 and 260,928.59

Step by Step Solution

1. Step 1: Write the proportion equation
   451,915.52 : 623,698.72 = 260,928.59 : x
2. Step 2: Convert to fraction form
   451,915.52/623,698.72 = 260,928.59/x
3. Step 3: Cross multiply
   451,915.52x = 623,698.72 × 260,928.59
4. Step 4: Simplify right side
   451,915.52x = 162,740,823,823.59
5. Step 5: Solve for x
   x = 162,740,823,823.59/451,915.52
6. Step 6: Final answer
   x = 360,113.38