Finding the Fourth Proportional to 111,510.50, 154,012.25 and 73,440.29

Step by Step Solution

1. Step 1: Write the proportion equation
   111,510.50 : 154,012.25 = 73,440.29 : x
2. Step 2: Convert to fraction form
   111,510.50/154,012.25 = 73,440.29/x
3. Step 3: Cross multiply
   111,510.50x = 154,012.25 × 73,440.29
4. Step 4: Simplify right side
   111,510.50x = 11,310,704,872.18
5. Step 5: Solve for x
   x = 11,310,704,872.18/111,510.50
6. Step 6: Final answer
   x = 101,431.75