Finding the Fourth Proportional to 120,105.12, 180,060.42 and 50,036.88

Step by Step Solution

1. Step 1: Write the proportion equation
   120,105.12 : 180,060.42 = 50,036.88 : x
2. Step 2: Convert to fraction form
   120,105.12/180,060.42 = 50,036.88/x
3. Step 3: Cross multiply
   120,105.12x = 180,060.42 × 50,036.88
4. Step 4: Simplify right side
   120,105.12x = 9,009,661,628.29
5. Step 5: Solve for x
   x = 9,009,661,628.29/120,105.12
6. Step 6: Final answer
   x = 75,014.80