Finding the Fourth Proportional to 13,445.01, 18,554.18 and 7,476.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,445.01 : 18,554.18 = 7,476.72 : x
2. Step 2: Convert to fraction form
   13,445.01/18,554.18 = 7,476.72/x
3. Step 3: Cross multiply
   13,445.01x = 18,554.18 × 7,476.72
4. Step 4: Simplify right side
   13,445.01x = 138,724,371.31
5. Step 5: Solve for x
   x = 138,724,371.31/13,445.01
6. Step 6: Final answer
   x = 10,317.91