Finding the Fourth Proportional to 127,065.15, 190,615.34 and 42,849.45

Step by Step Solution

1. Step 1: Write the proportion equation
   127,065.15 : 190,615.34 = 42,849.45 : x
2. Step 2: Convert to fraction form
   127,065.15/190,615.34 = 42,849.45/x
3. Step 3: Cross multiply
   127,065.15x = 190,615.34 × 42,849.45
4. Step 4: Simplify right side
   127,065.15x = 8,167,762,587.69
5. Step 5: Solve for x
   x = 8,167,762,587.69/127,065.15
6. Step 6: Final answer
   x = 64,280.12