Finding the Fourth Proportional to 13,908.72, 19,193.91 and 7,535.17

Step by Step Solution

1. Step 1: Write the proportion equation
   13,908.72 : 19,193.91 = 7,535.17 : x
2. Step 2: Convert to fraction form
   13,908.72/19,193.91 = 7,535.17/x
3. Step 3: Cross multiply
   13,908.72x = 19,193.91 × 7,535.17
4. Step 4: Simplify right side
   13,908.72x = 144,629,374.81
5. Step 5: Solve for x
   x = 144,629,374.81/13,908.72
6. Step 6: Final answer
   x = 10,398.47