Finding the Fourth Proportional to 13,672.35, 19,097.55 and 13,672.35

Step by Step Solution

1. Step 1: Write the proportion equation
   13,672.35 : 19,097.55 = 13,672.35 : x
2. Step 2: Convert to fraction form
   13,672.35/19,097.55 = 13,672.35/x
3. Step 3: Cross multiply
   13,672.35x = 19,097.55 × 13,672.35
4. Step 4: Simplify right side
   13,672.35x = 261,108,387.74
5. Step 5: Solve for x
   x = 261,108,387.74/13,672.35
6. Step 6: Final answer
   x = 19,097.55