Finding the Fourth Proportional to 13,088.34, 19,621.17 and 5,292.09

Step by Step Solution

1. Step 1: Write the proportion equation
   13,088.34 : 19,621.17 = 5,292.09 : x
2. Step 2: Convert to fraction form
   13,088.34/19,621.17 = 5,292.09/x
3. Step 3: Cross multiply
   13,088.34x = 19,621.17 × 5,292.09
4. Step 4: Simplify right side
   13,088.34x = 103,836,997.55
5. Step 5: Solve for x
   x = 103,836,997.55/13,088.34
6. Step 6: Final answer
   x = 7,933.55