Finding the Fourth Proportional to 10,018.64, 13,809.16 and 7,530.32

Step by Step Solution

1. Step 1: Write the proportion equation
   10,018.64 : 13,809.16 = 7,530.32 : x
2. Step 2: Convert to fraction form
   10,018.64/13,809.16 = 7,530.32/x
3. Step 3: Cross multiply
   10,018.64x = 13,809.16 × 7,530.32
4. Step 4: Simplify right side
   10,018.64x = 103,987,393.73
5. Step 5: Solve for x
   x = 103,987,393.73/10,018.64
6. Step 6: Final answer
   x = 10,379.39