Finding the Fourth Proportional to 13,308.98, 18,368.58 and 8,006.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,308.98 : 18,368.58 = 8,006.72 : x
2. Step 2: Convert to fraction form
   13,308.98/18,368.58 = 8,006.72/x
3. Step 3: Cross multiply
   13,308.98x = 18,368.58 × 8,006.72
4. Step 4: Simplify right side
   13,308.98x = 147,071,985.01
5. Step 5: Solve for x
   x = 147,071,985.01/13,308.98
6. Step 6: Final answer
   x = 11,050.59