Finding the Fourth Proportional to 15,256.00, 21,051.06 and 8,540.39

Step by Step Solution

1. Step 1: Write the proportion equation
   15,256.00 : 21,051.06 = 8,540.39 : x
2. Step 2: Convert to fraction form
   15,256.00/21,051.06 = 8,540.39/x
3. Step 3: Cross multiply
   15,256.00x = 21,051.06 × 8,540.39
4. Step 4: Simplify right side
   15,256.00x = 179,784,157.06
5. Step 5: Solve for x
   x = 179,784,157.06/15,256.00
6. Step 6: Final answer
   x = 11,784.49