Finding the Fourth Proportional to 309,300.16, 464,128.64 and 167,145.76

Step by Step Solution

1. Step 1: Write the proportion equation
   309,300.16 : 464,128.64 = 167,145.76 : x
2. Step 2: Convert to fraction form
   309,300.16/464,128.64 = 167,145.76/x
3. Step 3: Cross multiply
   309,300.16x = 464,128.64 × 167,145.76
4. Step 4: Simplify right side
   309,300.16x = 77,577,134,270.57
5. Step 5: Solve for x
   x = 77,577,134,270.57/309,300.16
6. Step 6: Final answer
   x = 250,815.05