Finding the Fourth Proportional to 9,770.85, 13,483.59 and 5,521.81

Step by Step Solution

1. Step 1: Write the proportion equation
   9,770.85 : 13,483.59 = 5,521.81 : x
2. Step 2: Convert to fraction form
   9,770.85/13,483.59 = 5,521.81/x
3. Step 3: Cross multiply
   9,770.85x = 13,483.59 × 5,521.81
4. Step 4: Simplify right side
   9,770.85x = 74,453,822.10
5. Step 5: Solve for x
   x = 74,453,822.10/9,770.85
6. Step 6: Final answer
   x = 7,619.99