Finding the Fourth Proportional to 309,499, 427,115.10 and 175,363

Step by Step Solution

1. Step 1: Write the proportion equation
   309,499 : 427,115.10 = 175,363 : x
2. Step 2: Convert to fraction form
   309,499/427,115.10 = 175,363/x
3. Step 3: Cross multiply
   309,499x = 427,115.10 × 175,363
4. Step 4: Simplify right side
   309,499x = 74,900,185,281.30
5. Step 5: Solve for x
   x = 74,900,185,281.30/309,499
6. Step 6: Final answer
   x = 242,004.61