Finding the Fourth Proportional to 344,978.48, 476,079.56 and 189,934.50

Step by Step Solution

1. Step 1: Write the proportion equation
   344,978.48 : 476,079.56 = 189,934.50 : x
2. Step 2: Convert to fraction form
   344,978.48/476,079.56 = 189,934.50/x
3. Step 3: Cross multiply
   344,978.48x = 476,079.56 × 189,934.50
4. Step 4: Simplify right side
   344,978.48x = 90,423,933,188.82
5. Step 5: Solve for x
   x = 90,423,933,188.82/344,978.48
6. Step 6: Final answer
   x = 262,114.71