Finding the Fourth Proportional to 127,066, 190,593.50 and 42,820.60

Step by Step Solution

1. Step 1: Write the proportion equation
   127,066 : 190,593.50 = 42,820.60 : x
2. Step 2: Convert to fraction form
   127,066/190,593.50 = 42,820.60/x
3. Step 3: Cross multiply
   127,066x = 190,593.50 × 42,820.60
4. Step 4: Simplify right side
   127,066x = 8,161,328,026.10
5. Step 5: Solve for x
   x = 8,161,328,026.10/127,066
6. Step 6: Final answer
   x = 64,229.05