Finding the Fourth Proportional to 240,058.94, 360,141.98 and 90,300.47

Step by Step Solution

1. Step 1: Write the proportion equation
   240,058.94 : 360,141.98 = 90,300.47 : x
2. Step 2: Convert to fraction form
   240,058.94/360,141.98 = 90,300.47/x
3. Step 3: Cross multiply
   240,058.94x = 360,141.98 × 90,300.47
4. Step 4: Simplify right side
   240,058.94x = 32,520,987,808.52
5. Step 5: Solve for x
   x = 32,520,987,808.52/240,058.94
6. Step 6: Final answer
   x = 135,470.85