Finding the Fourth Proportional to 33,131.76, 45,705.72 and 19,693.50

Step by Step Solution

1. Step 1: Write the proportion equation
   33,131.76 : 45,705.72 = 19,693.50 : x
2. Step 2: Convert to fraction form
   33,131.76/45,705.72 = 19,693.50/x
3. Step 3: Cross multiply
   33,131.76x = 45,705.72 × 19,693.50
4. Step 4: Simplify right side
   33,131.76x = 900,105,596.82
5. Step 5: Solve for x
   x = 900,105,596.82/33,131.76
6. Step 6: Final answer
   x = 27,167.45