Finding the Fourth Proportional to 13,291.72, 19,930.59 and 5,892.98

Step by Step Solution

1. Step 1: Write the proportion equation
   13,291.72 : 19,930.59 = 5,892.98 : x
2. Step 2: Convert to fraction form
   13,291.72/19,930.59 = 5,892.98/x
3. Step 3: Cross multiply
   13,291.72x = 19,930.59 × 5,892.98
4. Step 4: Simplify right side
   13,291.72x = 117,450,468.61
5. Step 5: Solve for x
   x = 117,450,468.61/13,291.72
6. Step 6: Final answer
   x = 8,836.37