Finding the Fourth Proportional to 127,023.50, 190,543.23 and 42,776.78

Step by Step Solution

1. Step 1: Write the proportion equation
   127,023.50 : 190,543.23 = 42,776.78 : x
2. Step 2: Convert to fraction form
   127,023.50/190,543.23 = 42,776.78/x
3. Step 3: Cross multiply
   127,023.50x = 190,543.23 × 42,776.78
4. Step 4: Simplify right side
   127,023.50x = 8,150,825,830.20
5. Step 5: Solve for x
   x = 8,150,825,830.20/127,023.50
6. Step 6: Final answer
   x = 64,167.86