Finding the Fourth Proportional to 7,636.12, 11,471.72 and 5,389.82

Step by Step Solution

1. Step 1: Write the proportion equation
   7,636.12 : 11,471.72 = 5,389.82 : x
2. Step 2: Convert to fraction form
   7,636.12/11,471.72 = 5,389.82/x
3. Step 3: Cross multiply
   7,636.12x = 11,471.72 × 5,389.82
4. Step 4: Simplify right side
   7,636.12x = 61,830,505.89
5. Step 5: Solve for x
   x = 61,830,505.89/7,636.12
6. Step 6: Final answer
   x = 8,097.11