Finding the Fourth Proportional to 9,721.74, 13,414.76 and 5,530.08

Step by Step Solution

1. Step 1: Write the proportion equation
   9,721.74 : 13,414.76 = 5,530.08 : x
2. Step 2: Convert to fraction form
   9,721.74/13,414.76 = 5,530.08/x
3. Step 3: Cross multiply
   9,721.74x = 13,414.76 × 5,530.08
4. Step 4: Simplify right side
   9,721.74x = 74,184,695.98
5. Step 5: Solve for x
   x = 74,184,695.98/9,721.74
6. Step 6: Final answer
   x = 7,630.80