Finding the Fourth Proportional to 72,419.82, 108,629.64 and 19,833.45

Step by Step Solution

1. Step 1: Write the proportion equation
   72,419.82 : 108,629.64 = 19,833.45 : x
2. Step 2: Convert to fraction form
   72,419.82/108,629.64 = 19,833.45/x
3. Step 3: Cross multiply
   72,419.82x = 108,629.64 × 19,833.45
4. Step 4: Simplify right side
   72,419.82x = 2,154,500,533.46
5. Step 5: Solve for x
   x = 2,154,500,533.46/72,419.82
6. Step 6: Final answer
   x = 29,750.15