Finding the Fourth Proportional to 13,948.88, 19,264.56 and 8,656.32

Step by Step Solution

1. Step 1: Write the proportion equation
   13,948.88 : 19,264.56 = 8,656.32 : x
2. Step 2: Convert to fraction form
   13,948.88/19,264.56 = 8,656.32/x
3. Step 3: Cross multiply
   13,948.88x = 19,264.56 × 8,656.32
4. Step 4: Simplify right side
   13,948.88x = 166,760,196.02
5. Step 5: Solve for x
   x = 166,760,196.02/13,948.88
6. Step 6: Final answer
   x = 11,955.10