Finding the Fourth Proportional to 9,778.35, 13,493.39 and 5,529.81

Step by Step Solution

1. Step 1: Write the proportion equation
   9,778.35 : 13,493.39 = 5,529.81 : x
2. Step 2: Convert to fraction form
   9,778.35/13,493.39 = 5,529.81/x
3. Step 3: Cross multiply
   9,778.35x = 13,493.39 × 5,529.81
4. Step 4: Simplify right side
   9,778.35x = 74,615,830.01
5. Step 5: Solve for x
   x = 74,615,830.01/9,778.35
6. Step 6: Final answer
   x = 7,630.72