Finding the Fourth Proportional to 127,007.78, 190,532.73 and 42,775.07

Step by Step Solution

1. Step 1: Write the proportion equation
   127,007.78 : 190,532.73 = 42,775.07 : x
2. Step 2: Convert to fraction form
   127,007.78/190,532.73 = 42,775.07/x
3. Step 3: Cross multiply
   127,007.78x = 190,532.73 × 42,775.07
4. Step 4: Simplify right side
   127,007.78x = 8,150,050,863.04
5. Step 5: Solve for x
   x = 8,150,050,863.04/127,007.78
6. Step 6: Final answer
   x = 64,169.70