Finding the Fourth Proportional to 518,670.82, 777,978.69 and 158,841.55

Step by Step Solution

1. Step 1: Write the proportion equation
   518,670.82 : 777,978.69 = 158,841.55 : x
2. Step 2: Convert to fraction form
   518,670.82/777,978.69 = 158,841.55/x
3. Step 3: Cross multiply
   518,670.82x = 777,978.69 × 158,841.55
4. Step 4: Simplify right side
   518,670.82x = 123,575,340,986.57
5. Step 5: Solve for x
   x = 123,575,340,986.57/518,670.82
6. Step 6: Final answer
   x = 238,253.89