Finding the Fourth Proportional to 14,435.32, 21,643.38 and 5,200.12

Step by Step Solution

1. Step 1: Write the proportion equation
   14,435.32 : 21,643.38 = 5,200.12 : x
2. Step 2: Convert to fraction form
   14,435.32/21,643.38 = 5,200.12/x
3. Step 3: Cross multiply
   14,435.32x = 21,643.38 × 5,200.12
4. Step 4: Simplify right side
   14,435.32x = 112,548,173.21
5. Step 5: Solve for x
   x = 112,548,173.21/14,435.32
6. Step 6: Final answer
   x = 7,796.72