Finding the Fourth Proportional to 75,842.25, 104,665.56 and 42,308.25

Step by Step Solution

1. Step 1: Write the proportion equation
   75,842.25 : 104,665.56 = 42,308.25 : x
2. Step 2: Convert to fraction form
   75,842.25/104,665.56 = 42,308.25/x
3. Step 3: Cross multiply
   75,842.25x = 104,665.56 × 42,308.25
4. Step 4: Simplify right side
   75,842.25x = 4,428,216,678.87
5. Step 5: Solve for x
   x = 4,428,216,678.87/75,842.25
6. Step 6: Final answer
   x = 58,387.20