Finding the Fourth Proportional to 8,929.21, 13,392.50 and 2,355.86

Step by Step Solution

1. Step 1: Write the proportion equation
   8,929.21 : 13,392.50 = 2,355.86 : x
2. Step 2: Convert to fraction form
   8,929.21/13,392.50 = 2,355.86/x
3. Step 3: Cross multiply
   8,929.21x = 13,392.50 × 2,355.86
4. Step 4: Simplify right side
   8,929.21x = 31,550,776.31
5. Step 5: Solve for x
   x = 31,550,776.31/8,929.21
6. Step 6: Final answer
   x = 3,533.44