Finding the Fourth Proportional to 78,269.05, 108,011.37 and 42,459.04

Step by Step Solution

1. Step 1: Write the proportion equation
   78,269.05 : 108,011.37 = 42,459.04 : x
2. Step 2: Convert to fraction form
   78,269.05/108,011.37 = 42,459.04/x
3. Step 3: Cross multiply
   78,269.05x = 108,011.37 × 42,459.04
4. Step 4: Simplify right side
   78,269.05x = 4,586,059,079.28
5. Step 5: Solve for x
   x = 4,586,059,079.28/78,269.05
6. Step 6: Final answer
   x = 58,593.52