Finding the Fourth Proportional to 123,622.10, 185,433.15 and 76,966.10

Step by Step Solution

1. Step 1: Write the proportion equation
   123,622.10 : 185,433.15 = 76,966.10 : x
2. Step 2: Convert to fraction form
   123,622.10/185,433.15 = 76,966.10/x
3. Step 3: Cross multiply
   123,622.10x = 185,433.15 × 76,966.10
4. Step 4: Simplify right side
   123,622.10x = 14,272,066,366.22
5. Step 5: Solve for x
   x = 14,272,066,366.22/123,622.10
6. Step 6: Final answer
   x = 115,449.15