Finding the Fourth Proportional to 148,139.48, 222,231.09 and 42,944.78

Step by Step Solution

1. Step 1: Write the proportion equation
   148,139.48 : 222,231.09 = 42,944.78 : x
2. Step 2: Convert to fraction form
   148,139.48/222,231.09 = 42,944.78/x
3. Step 3: Cross multiply
   148,139.48x = 222,231.09 × 42,944.78
4. Step 4: Simplify right side
   148,139.48x = 9,543,665,985.83
5. Step 5: Solve for x
   x = 9,543,665,985.83/148,139.48
6. Step 6: Final answer
   x = 64,423.51