Finding the Fourth Proportional to 33,156.31, 45,740.67 and 19,719.91

Step by Step Solution

1. Step 1: Write the proportion equation
   33,156.31 : 45,740.67 = 19,719.91 : x
2. Step 2: Convert to fraction form
   33,156.31/45,740.67 = 19,719.91/x
3. Step 3: Cross multiply
   33,156.31x = 45,740.67 × 19,719.91
4. Step 4: Simplify right side
   33,156.31x = 902,001,895.74
5. Step 5: Solve for x
   x = 902,001,895.74/33,156.31
6. Step 6: Final answer
   x = 27,204.53