Finding the Fourth Proportional to 127,065.26, 190,549.25 and 42,802.78

Step by Step Solution

1. Step 1: Write the proportion equation
   127,065.26 : 190,549.25 = 42,802.78 : x
2. Step 2: Convert to fraction form
   127,065.26/190,549.25 = 42,802.78/x
3. Step 3: Cross multiply
   127,065.26x = 190,549.25 × 42,802.78
4. Step 4: Simplify right side
   127,065.26x = 8,156,036,460.15
5. Step 5: Solve for x
   x = 8,156,036,460.15/127,065.26
6. Step 6: Final answer
   x = 64,187.78