Finding the Fourth Proportional to 53,300.68, 73,553.83 and 30,639.08

Step by Step Solution

1. Step 1: Write the proportion equation
   53,300.68 : 73,553.83 = 30,639.08 : x
2. Step 2: Convert to fraction form
   53,300.68/73,553.83 = 30,639.08/x
3. Step 3: Cross multiply
   53,300.68x = 73,553.83 × 30,639.08
4. Step 4: Simplify right side
   53,300.68x = 2,253,621,788.96
5. Step 5: Solve for x
   x = 2,253,621,788.96/53,300.68
6. Step 6: Final answer
   x = 42,281.30