Finding the Fourth Proportional to 9,553.95, 13,187.21 and 5,777.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,553.95 : 13,187.21 = 5,777.12 : x
2. Step 2: Convert to fraction form
   9,553.95/13,187.21 = 5,777.12/x
3. Step 3: Cross multiply
   9,553.95x = 13,187.21 × 5,777.12
4. Step 4: Simplify right side
   9,553.95x = 76,184,098.72
5. Step 5: Solve for x
   x = 76,184,098.72/9,553.95
6. Step 6: Final answer
   x = 7,974.09