Finding the Fourth Proportional to 127,136.94, 190,710.81 and 42,899.10

Step by Step Solution

1. Step 1: Write the proportion equation
   127,136.94 : 190,710.81 = 42,899.10 : x
2. Step 2: Convert to fraction form
   127,136.94/190,710.81 = 42,899.10/x
3. Step 3: Cross multiply
   127,136.94x = 190,710.81 × 42,899.10
4. Step 4: Simplify right side
   127,136.94x = 8,181,322,109.27
5. Step 5: Solve for x
   x = 8,181,322,109.27/127,136.94
6. Step 6: Final answer
   x = 64,350.47