Finding the Fourth Proportional to 166,233.30, 249,506.55 and 87,404.10

Step by Step Solution

1. Step 1: Write the proportion equation
   166,233.30 : 249,506.55 = 87,404.10 : x
2. Step 2: Convert to fraction form
   166,233.30/249,506.55 = 87,404.10/x
3. Step 3: Cross multiply
   166,233.30x = 249,506.55 × 87,404.10
4. Step 4: Simplify right side
   166,233.30x = 21,807,895,446.86
5. Step 5: Solve for x
   x = 21,807,895,446.86/166,233.30
6. Step 6: Final answer
   x = 131,188.49