Finding the Fourth Proportional to 154,396.71, 231,571.38 and 42,085.96

Step by Step Solution

1. Step 1: Write the proportion equation
   154,396.71 : 231,571.38 = 42,085.96 : x
2. Step 2: Convert to fraction form
   154,396.71/231,571.38 = 42,085.96/x
3. Step 3: Cross multiply
   154,396.71x = 231,571.38 × 42,085.96
4. Step 4: Simplify right side
   154,396.71x = 9,745,903,835.82
5. Step 5: Solve for x
   x = 9,745,903,835.82/154,396.71
6. Step 6: Final answer
   x = 63,122.48