Finding the Fourth Proportional to 9,778.06, 13,493.80 and 5,528.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,778.06 : 13,493.80 = 5,528.94 : x
2. Step 2: Convert to fraction form
   9,778.06/13,493.80 = 5,528.94/x
3. Step 3: Cross multiply
   9,778.06x = 13,493.80 × 5,528.94
4. Step 4: Simplify right side
   9,778.06x = 74,606,410.57
5. Step 5: Solve for x
   x = 74,606,410.57/9,778.06
6. Step 6: Final answer
   x = 7,629.98