Finding the Fourth Proportional to 33,131.61, 45,719.46 and 19,703.88

Step by Step Solution

1. Step 1: Write the proportion equation
   33,131.61 : 45,719.46 = 19,703.88 : x
2. Step 2: Convert to fraction form
   33,131.61/45,719.46 = 19,703.88/x
3. Step 3: Cross multiply
   33,131.61x = 45,719.46 × 19,703.88
4. Step 4: Simplify right side
   33,131.61x = 900,850,753.50
5. Step 5: Solve for x
   x = 900,850,753.50/33,131.61
6. Step 6: Final answer
   x = 27,190.07