Finding the Fourth Proportional to 72,645.05, 108,967.40 and 19,337.03

Step by Step Solution

1. Step 1: Write the proportion equation
   72,645.05 : 108,967.40 = 19,337.03 : x
2. Step 2: Convert to fraction form
   72,645.05/108,967.40 = 19,337.03/x
3. Step 3: Cross multiply
   72,645.05x = 108,967.40 × 19,337.03
4. Step 4: Simplify right side
   72,645.05x = 2,107,105,241.30
5. Step 5: Solve for x
   x = 2,107,105,241.30/72,645.05
6. Step 6: Final answer
   x = 29,005.49