Finding the Fourth Proportional to 111,510.87, 153,672.39 and 109,461.30

Step by Step Solution

1. Step 1: Write the proportion equation
   111,510.87 : 153,672.39 = 109,461.30 : x
2. Step 2: Convert to fraction form
   111,510.87/153,672.39 = 109,461.30/x
3. Step 3: Cross multiply
   111,510.87x = 153,672.39 × 109,461.30
4. Step 4: Simplify right side
   111,510.87x = 16,821,179,583.51
5. Step 5: Solve for x
   x = 16,821,179,583.51/111,510.87
6. Step 6: Final answer
   x = 150,847.89