Finding the Fourth Proportional to 107,560.56, 161,362.62 and 45,231

Step by Step Solution

1. Step 1: Write the proportion equation
   107,560.56 : 161,362.62 = 45,231 : x
2. Step 2: Convert to fraction form
   107,560.56/161,362.62 = 45,231/x
3. Step 3: Cross multiply
   107,560.56x = 161,362.62 × 45,231
4. Step 4: Simplify right side
   107,560.56x = 7,298,592,665.22
5. Step 5: Solve for x
   x = 7,298,592,665.22/107,560.56
6. Step 6: Final answer
   x = 67,855.66