Finding the Fourth Proportional to 53,388.57, 73,694.78 and 30,736.59

Step by Step Solution

1. Step 1: Write the proportion equation
   53,388.57 : 73,694.78 = 30,736.59 : x
2. Step 2: Convert to fraction form
   53,388.57/73,694.78 = 30,736.59/x
3. Step 3: Cross multiply
   53,388.57x = 73,694.78 × 30,736.59
4. Step 4: Simplify right side
   53,388.57x = 2,265,126,406.96
5. Step 5: Solve for x
   x = 2,265,126,406.96/53,388.57
6. Step 6: Final answer
   x = 42,427.18