Finding the Fourth Proportional to 13,302.30, 19,955.88 and 5,511.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,302.30 : 19,955.88 = 5,511.72 : x
2. Step 2: Convert to fraction form
   13,302.30/19,955.88 = 5,511.72/x
3. Step 3: Cross multiply
   13,302.30x = 19,955.88 × 5,511.72
4. Step 4: Simplify right side
   13,302.30x = 109,991,222.91
5. Step 5: Solve for x
   x = 109,991,222.91/13,302.30
6. Step 6: Final answer
   x = 8,268.59