Finding the Fourth Proportional to 110,388.82, 166,320.82 and 99,872.19

Step by Step Solution

1. Step 1: Write the proportion equation
   110,388.82 : 166,320.82 = 99,872.19 : x
2. Step 2: Convert to fraction form
   110,388.82/166,320.82 = 99,872.19/x
3. Step 3: Cross multiply
   110,388.82x = 166,320.82 × 99,872.19
4. Step 4: Simplify right side
   110,388.82x = 16,610,824,536.00
5. Step 5: Solve for x
   x = 16,610,824,536.00/110,388.82
6. Step 6: Final answer
   x = 150,475.61