Finding the Fourth Proportional to 70,142.72, 105,238.68 and 36,392.52

Step by Step Solution

1. Step 1: Write the proportion equation
   70,142.72 : 105,238.68 = 36,392.52 : x
2. Step 2: Convert to fraction form
   70,142.72/105,238.68 = 36,392.52/x
3. Step 3: Cross multiply
   70,142.72x = 105,238.68 × 36,392.52
4. Step 4: Simplify right side
   70,142.72x = 3,829,900,766.67
5. Step 5: Solve for x
   x = 3,829,900,766.67/70,142.72
6. Step 6: Final answer
   x = 54,601.54