Finding the Fourth Proportional to 127,077.72, 190,606.15 and 42,836.05

Step by Step Solution

1. Step 1: Write the proportion equation
   127,077.72 : 190,606.15 = 42,836.05 : x
2. Step 2: Convert to fraction form
   127,077.72/190,606.15 = 42,836.05/x
3. Step 3: Cross multiply
   127,077.72x = 190,606.15 × 42,836.05
4. Step 4: Simplify right side
   127,077.72x = 8,164,814,571.71
5. Step 5: Solve for x
   x = 8,164,814,571.71/127,077.72
6. Step 6: Final answer
   x = 64,250.56