Finding the Fourth Proportional to 14,002.47, 21,007.35 and 5,238.07

Step by Step Solution

1. Step 1: Write the proportion equation
   14,002.47 : 21,007.35 = 5,238.07 : x
2. Step 2: Convert to fraction form
   14,002.47/21,007.35 = 5,238.07/x
3. Step 3: Cross multiply
   14,002.47x = 21,007.35 × 5,238.07
4. Step 4: Simplify right side
   14,002.47x = 110,037,917.30
5. Step 5: Solve for x
   x = 110,037,917.30/14,002.47
6. Step 6: Final answer
   x = 7,858.46