Finding the Fourth Proportional to 13,200.48, 19,801.68 and 4,435.32

Step by Step Solution

1. Step 1: Write the proportion equation
   13,200.48 : 19,801.68 = 4,435.32 : x
2. Step 2: Convert to fraction form
   13,200.48/19,801.68 = 4,435.32/x
3. Step 3: Cross multiply
   13,200.48x = 19,801.68 × 4,435.32
4. Step 4: Simplify right side
   13,200.48x = 87,826,787.34
5. Step 5: Solve for x
   x = 87,826,787.34/13,200.48
6. Step 6: Final answer
   x = 6,653.30