Finding the Fourth Proportional to 9,536.86, 13,158.15 and 5,557.21

Step by Step Solution

1. Step 1: Write the proportion equation
   9,536.86 : 13,158.15 = 5,557.21 : x
2. Step 2: Convert to fraction form
   9,536.86/13,158.15 = 5,557.21/x
3. Step 3: Cross multiply
   9,536.86x = 13,158.15 × 5,557.21
4. Step 4: Simplify right side
   9,536.86x = 73,122,549.03
5. Step 5: Solve for x
   x = 73,122,549.03/9,536.86
6. Step 6: Final answer
   x = 7,667.36