Finding the Fourth Proportional to 72,367.47, 108,554.24 and 19,776.80

Step by Step Solution

1. Step 1: Write the proportion equation
   72,367.47 : 108,554.24 = 19,776.80 : x
2. Step 2: Convert to fraction form
   72,367.47/108,554.24 = 19,776.80/x
3. Step 3: Cross multiply
   72,367.47x = 108,554.24 × 19,776.80
4. Step 4: Simplify right side
   72,367.47x = 2,146,855,814.46
5. Step 5: Solve for x
   x = 2,146,855,814.46/72,367.47
6. Step 6: Final answer
   x = 29,666.03