Finding the Fourth Proportional to 110,339.11, 152,228.81 and 72,120.73

Step by Step Solution

1. Step 1: Write the proportion equation
   110,339.11 : 152,228.81 = 72,120.73 : x
2. Step 2: Convert to fraction form
   110,339.11/152,228.81 = 72,120.73/x
3. Step 3: Cross multiply
   110,339.11x = 152,228.81 × 72,120.73
4. Step 4: Simplify right side
   110,339.11x = 10,978,852,904.23
5. Step 5: Solve for x
   x = 10,978,852,904.23/110,339.11
6. Step 6: Final answer
   x = 99,501.01