Finding the Fourth Proportional to 107,419.72, 161,118.24 and 28,541.92

Step by Step Solution

1. Step 1: Write the proportion equation
   107,419.72 : 161,118.24 = 28,541.92 : x
2. Step 2: Convert to fraction form
   107,419.72/161,118.24 = 28,541.92/x
3. Step 3: Cross multiply
   107,419.72x = 161,118.24 × 28,541.92
4. Step 4: Simplify right side
   107,419.72x = 4,598,623,916.62
5. Step 5: Solve for x
   x = 4,598,623,916.62/107,419.72
6. Step 6: Final answer
   x = 42,809.87