Finding the Fourth Proportional to 147,766.10, 221,321.10 and 121,522.10

Step by Step Solution

1. Step 1: Write the proportion equation
   147,766.10 : 221,321.10 = 121,522.10 : x
2. Step 2: Convert to fraction form
   147,766.10/221,321.10 = 121,522.10/x
3. Step 3: Cross multiply
   147,766.10x = 221,321.10 × 121,522.10
4. Step 4: Simplify right side
   147,766.10x = 26,895,404,846.31
5. Step 5: Solve for x
   x = 26,895,404,846.31/147,766.10
6. Step 6: Final answer
   x = 182,013.36