Finding the Fourth Proportional to 31,150.29, 46,725.21 and 7,776.72

Step by Step Solution

1. Step 1: Write the proportion equation
   31,150.29 : 46,725.21 = 7,776.72 : x
2. Step 2: Convert to fraction form
   31,150.29/46,725.21 = 7,776.72/x
3. Step 3: Cross multiply
   31,150.29x = 46,725.21 × 7,776.72
4. Step 4: Simplify right side
   31,150.29x = 363,368,875.11
5. Step 5: Solve for x
   x = 363,368,875.11/31,150.29
6. Step 6: Final answer
   x = 11,665.02