Finding the Fourth Proportional to 35,141.72, 52,733.37 and 12,970.54

Step by Step Solution

1. Step 1: Write the proportion equation
   35,141.72 : 52,733.37 = 12,970.54 : x
2. Step 2: Convert to fraction form
   35,141.72/52,733.37 = 12,970.54/x
3. Step 3: Cross multiply
   35,141.72x = 52,733.37 × 12,970.54
4. Step 4: Simplify right side
   35,141.72x = 683,980,284.92
5. Step 5: Solve for x
   x = 683,980,284.92/35,141.72
6. Step 6: Final answer
   x = 19,463.48