Finding the Fourth Proportional to 415,699.50, 623,550.56 and 116,178.10

Step by Step Solution

1. Step 1: Write the proportion equation
   415,699.50 : 623,550.56 = 116,178.10 : x
2. Step 2: Convert to fraction form
   415,699.50/623,550.56 = 116,178.10/x
3. Step 3: Cross multiply
   415,699.50x = 623,550.56 × 116,178.10
4. Step 4: Simplify right side
   415,699.50x = 72,442,918,733.85
5. Step 5: Solve for x
   x = 72,442,918,733.85/415,699.50
6. Step 6: Final answer
   x = 174,267.52