Finding the Fourth Proportional to 107,419.68, 161,152.56 and 45,054.24

Step by Step Solution

1. Step 1: Write the proportion equation
   107,419.68 : 161,152.56 = 45,054.24 : x
2. Step 2: Convert to fraction form
   107,419.68/161,152.56 = 45,054.24/x
3. Step 3: Cross multiply
   107,419.68x = 161,152.56 × 45,054.24
4. Step 4: Simplify right side
   107,419.68x = 7,260,606,114.85
5. Step 5: Solve for x
   x = 7,260,606,114.85/107,419.68
6. Step 6: Final answer
   x = 67,591.02