Finding the Fourth Proportional to 423,066.06, 634,658.49 and 123,568.62

Step by Step Solution

1. Step 1: Write the proportion equation
   423,066.06 : 634,658.49 = 123,568.62 : x
2. Step 2: Convert to fraction form
   423,066.06/634,658.49 = 123,568.62/x
3. Step 3: Cross multiply
   423,066.06x = 634,658.49 × 123,568.62
4. Step 4: Simplify right side
   423,066.06x = 78,423,873,780.58
5. Step 5: Solve for x
   x = 78,423,873,780.58/423,066.06
6. Step 6: Final answer
   x = 185,370.28