Finding the Fourth Proportional to 423,031, 634,478.42 and 123,441.24

Step by Step Solution

1. Step 1: Write the proportion equation
   423,031 : 634,478.42 = 123,441.24 : x
2. Step 2: Convert to fraction form
   423,031/634,478.42 = 123,441.24/x
3. Step 3: Cross multiply
   423,031x = 634,478.42 × 123,441.24
4. Step 4: Simplify right side
   423,031x = 78,320,802,918.04
5. Step 5: Solve for x
   x = 78,320,802,918.04/423,031
6. Step 6: Final answer
   x = 185,141.99