Finding the Fourth Proportional to 31,952.99, 47,897.01 and 13,243.20

Step by Step Solution

1. Step 1: Write the proportion equation
   31,952.99 : 47,897.01 = 13,243.20 : x
2. Step 2: Convert to fraction form
   31,952.99/47,897.01 = 13,243.20/x
3. Step 3: Cross multiply
   31,952.99x = 47,897.01 × 13,243.20
4. Step 4: Simplify right side
   31,952.99x = 634,309,682.83
5. Step 5: Solve for x
   x = 634,309,682.83/31,952.99
6. Step 6: Final answer
   x = 19,851.34