Finding the Fourth Proportional to 13,321.30, 19,977.62 and 4,434.74

Step by Step Solution

1. Step 1: Write the proportion equation
   13,321.30 : 19,977.62 = 4,434.74 : x
2. Step 2: Convert to fraction form
   13,321.30/19,977.62 = 4,434.74/x
3. Step 3: Cross multiply
   13,321.30x = 19,977.62 × 4,434.74
4. Step 4: Simplify right side
   13,321.30x = 88,595,550.52
5. Step 5: Solve for x
   x = 88,595,550.52/13,321.30
6. Step 6: Final answer
   x = 6,650.67