Finding the Fourth Proportional to 10,011.89, 13,815.81 and 5,535.29

Step by Step Solution

1. Step 1: Write the proportion equation
   10,011.89 : 13,815.81 = 5,535.29 : x
2. Step 2: Convert to fraction form
   10,011.89/13,815.81 = 5,535.29/x
3. Step 3: Cross multiply
   10,011.89x = 13,815.81 × 5,535.29
4. Step 4: Simplify right side
   10,011.89x = 76,474,445.86
5. Step 5: Solve for x
   x = 76,474,445.86/10,011.89
6. Step 6: Final answer
   x = 7,638.37