Finding the Fourth Proportional to 14,398.67, 21,598.79 and 4,538.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,398.67 : 21,598.79 = 4,538.72 : x
2. Step 2: Convert to fraction form
   14,398.67/21,598.79 = 4,538.72/x
3. Step 3: Cross multiply
   14,398.67x = 21,598.79 × 4,538.72
4. Step 4: Simplify right side
   14,398.67x = 98,030,860.15
5. Step 5: Solve for x
   x = 98,030,860.15/14,398.67
6. Step 6: Final answer
   x = 6,808.33