Finding the Fourth Proportional to 258,338.72, 387,753.43 and 158,693.53

Step by Step Solution

1. Step 1: Write the proportion equation
   258,338.72 : 387,753.43 = 158,693.53 : x
2. Step 2: Convert to fraction form
   258,338.72/387,753.43 = 158,693.53/x
3. Step 3: Cross multiply
   258,338.72x = 387,753.43 × 158,693.53
4. Step 4: Simplify right side
   258,338.72x = 61,533,960,234.78
5. Step 5: Solve for x
   x = 61,533,960,234.78/258,338.72
6. Step 6: Final answer
   x = 238,191.01