Finding the Fourth Proportional to 9,779.16, 13,495.50 and 5,530.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,779.16 : 13,495.50 = 5,530.98 : x
2. Step 2: Convert to fraction form
   9,779.16/13,495.50 = 5,530.98/x
3. Step 3: Cross multiply
   9,779.16x = 13,495.50 × 5,530.98
4. Step 4: Simplify right side
   9,779.16x = 74,643,340.59
5. Step 5: Solve for x
   x = 74,643,340.59/9,779.16
6. Step 6: Final answer
   x = 7,632.90