Finding the Fourth Proportional to 309,495, 427,109.58 and 175,359

Step by Step Solution

1. Step 1: Write the proportion equation
   309,495 : 427,109.58 = 175,359 : x
2. Step 2: Convert to fraction form
   309,495/427,109.58 = 175,359/x
3. Step 3: Cross multiply
   309,495x = 427,109.58 × 175,359
4. Step 4: Simplify right side
   309,495x = 74,897,508,839.22
5. Step 5: Solve for x
   x = 74,897,508,839.22/309,495
6. Step 6: Final answer
   x = 241,999.09