Finding the Fourth Proportional to 9,779.52, 13,495.04 and 5,530.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,779.52 : 13,495.04 = 5,530.56 : x
2. Step 2: Convert to fraction form
   9,779.52/13,495.04 = 5,530.56/x
3. Step 3: Cross multiply
   9,779.52x = 13,495.04 × 5,530.56
4. Step 4: Simplify right side
   9,779.52x = 74,635,128.42
5. Step 5: Solve for x
   x = 74,635,128.42/9,779.52
6. Step 6: Final answer
   x = 7,631.78