Finding the Fourth Proportional to 10,012.32, 13,816.61 and 5,535.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,012.32 : 13,816.61 = 5,535.78 : x
2. Step 2: Convert to fraction form
   10,012.32/13,816.61 = 5,535.78/x
3. Step 3: Cross multiply
   10,012.32x = 13,816.61 × 5,535.78
4. Step 4: Simplify right side
   10,012.32x = 76,485,713.31
5. Step 5: Solve for x
   x = 76,485,713.31/10,012.32
6. Step 6: Final answer
   x = 7,639.16