Finding the Fourth Proportional to 72,367.47, 108,554.25 and 19,776.81

Step by Step Solution

1. Step 1: Write the proportion equation
   72,367.47 : 108,554.25 = 19,776.81 : x
2. Step 2: Convert to fraction form
   72,367.47/108,554.25 = 19,776.81/x
3. Step 3: Cross multiply
   72,367.47x = 108,554.25 × 19,776.81
4. Step 4: Simplify right side
   72,367.47x = 2,146,856,776.94
5. Step 5: Solve for x
   x = 2,146,856,776.94/72,367.47
6. Step 6: Final answer
   x = 29,666.05