Finding the Fourth Proportional to 31,288.08, 46,933.76 and 7,914.72

Step by Step Solution

1. Step 1: Write the proportion equation
   31,288.08 : 46,933.76 = 7,914.72 : x
2. Step 2: Convert to fraction form
   31,288.08/46,933.76 = 7,914.72/x
3. Step 3: Cross multiply
   31,288.08x = 46,933.76 × 7,914.72
4. Step 4: Simplify right side
   31,288.08x = 371,467,568.95
5. Step 5: Solve for x
   x = 371,467,568.95/31,288.08
6. Step 6: Final answer
   x = 11,872.49