Finding the Fourth Proportional to 72,892.01, 109,344.28 and 20,301.49

Step by Step Solution

1. Step 1: Write the proportion equation
   72,892.01 : 109,344.28 = 20,301.49 : x
2. Step 2: Convert to fraction form
   72,892.01/109,344.28 = 20,301.49/x
3. Step 3: Cross multiply
   72,892.01x = 109,344.28 × 20,301.49
4. Step 4: Simplify right side
   72,892.01x = 2,219,851,806.98
5. Step 5: Solve for x
   x = 2,219,851,806.98/72,892.01
6. Step 6: Final answer
   x = 30,453.98