Finding the Fourth Proportional to 108,174, 149,183.15 and 90,084.63

Step by Step Solution

1. Step 1: Write the proportion equation
   108,174 : 149,183.15 = 90,084.63 : x
2. Step 2: Convert to fraction form
   108,174/149,183.15 = 90,084.63/x
3. Step 3: Cross multiply
   108,174x = 149,183.15 × 90,084.63
4. Step 4: Simplify right side
   108,174x = 13,439,108,419.56
5. Step 5: Solve for x
   x = 13,439,108,419.56/108,174
6. Step 6: Final answer
   x = 124,236.03