Finding the Fourth Proportional to 23,897.82, 32,969.76 and 15,399.30

Step by Step Solution

1. Step 1: Write the proportion equation
   23,897.82 : 32,969.76 = 15,399.30 : x
2. Step 2: Convert to fraction form
   23,897.82/32,969.76 = 15,399.30/x
3. Step 3: Cross multiply
   23,897.82x = 32,969.76 × 15,399.30
4. Step 4: Simplify right side
   23,897.82x = 507,711,225.17
5. Step 5: Solve for x
   x = 507,711,225.17/23,897.82
6. Step 6: Final answer
   x = 21,245.09