Finding the Fourth Proportional to 72,123.99, 108,186.00 and 19,533.49

Step by Step Solution

1. Step 1: Write the proportion equation
   72,123.99 : 108,186.00 = 19,533.49 : x
2. Step 2: Convert to fraction form
   72,123.99/108,186.00 = 19,533.49/x
3. Step 3: Cross multiply
   72,123.99x = 108,186.00 × 19,533.49
4. Step 4: Simplify right side
   72,123.99x = 2,113,249,805.42
5. Step 5: Solve for x
   x = 2,113,249,805.42/72,123.99
6. Step 6: Final answer
   x = 29,300.24