Finding the Fourth Proportional to 363,402.48, 545,153.56 and 123,451.94

Step by Step Solution

1. Step 1: Write the proportion equation
   363,402.48 : 545,153.56 = 123,451.94 : x
2. Step 2: Convert to fraction form
   363,402.48/545,153.56 = 123,451.94/x
3. Step 3: Cross multiply
   363,402.48x = 545,153.56 × 123,451.94
4. Step 4: Simplify right side
   363,402.48x = 67,300,264,579.91
5. Step 5: Solve for x
   x = 67,300,264,579.91/363,402.48
6. Step 6: Final answer
   x = 185,194.84