Finding the Fourth Proportional to 13,100.72, 19,654.16 and 4,335.63

Step by Step Solution

1. Step 1: Write the proportion equation
   13,100.72 : 19,654.16 = 4,335.63 : x
2. Step 2: Convert to fraction form
   13,100.72/19,654.16 = 4,335.63/x
3. Step 3: Cross multiply
   13,100.72x = 19,654.16 × 4,335.63
4. Step 4: Simplify right side
   13,100.72x = 85,213,144.04
5. Step 5: Solve for x
   x = 85,213,144.04/13,100.72
6. Step 6: Final answer
   x = 6,504.46