Finding the Fourth Proportional to 21,366.72, 32,048.64 and 9,054.72

Step by Step Solution

1. Step 1: Write the proportion equation
   21,366.72 : 32,048.64 = 9,054.72 : x
2. Step 2: Convert to fraction form
   21,366.72/32,048.64 = 9,054.72/x
3. Step 3: Cross multiply
   21,366.72x = 32,048.64 × 9,054.72
4. Step 4: Simplify right side
   21,366.72x = 290,191,461.58
5. Step 5: Solve for x
   x = 290,191,461.58/21,366.72
6. Step 6: Final answer
   x = 13,581.47