Finding the Fourth Proportional to 13,018.32, 19,525.32 and 4,253.31

Step by Step Solution

1. Step 1: Write the proportion equation
   13,018.32 : 19,525.32 = 4,253.31 : x
2. Step 2: Convert to fraction form
   13,018.32/19,525.32 = 4,253.31/x
3. Step 3: Cross multiply
   13,018.32x = 19,525.32 × 4,253.31
4. Step 4: Simplify right side
   13,018.32x = 83,047,238.81
5. Step 5: Solve for x
   x = 83,047,238.81/13,018.32
6. Step 6: Final answer
   x = 6,379.26