Finding the Fourth Proportional to 147,488.82, 221,268.75 and 42,306.87

Step by Step Solution

1. Step 1: Write the proportion equation
   147,488.82 : 221,268.75 = 42,306.87 : x
2. Step 2: Convert to fraction form
   147,488.82/221,268.75 = 42,306.87/x
3. Step 3: Cross multiply
   147,488.82x = 221,268.75 × 42,306.87
4. Step 4: Simplify right side
   147,488.82x = 9,361,188,241.31
5. Step 5: Solve for x
   x = 9,361,188,241.31/147,488.82
6. Step 6: Final answer
   x = 63,470.49