Finding the Fourth Proportional to 33,126.57, 45,698.56 and 19,688.31

Step by Step Solution

1. Step 1: Write the proportion equation
   33,126.57 : 45,698.56 = 19,688.31 : x
2. Step 2: Convert to fraction form
   33,126.57/45,698.56 = 19,688.31/x
3. Step 3: Cross multiply
   33,126.57x = 45,698.56 × 19,688.31
4. Step 4: Simplify right side
   33,126.57x = 899,727,415.83
5. Step 5: Solve for x
   x = 899,727,415.83/33,126.57
6. Step 6: Final answer
   x = 27,160.30