Finding the Fourth Proportional to 31,039.68, 46,558.30 and 7,665.52

Step by Step Solution

1. Step 1: Write the proportion equation
   31,039.68 : 46,558.30 = 7,665.52 : x
2. Step 2: Convert to fraction form
   31,039.68/46,558.30 = 7,665.52/x
3. Step 3: Cross multiply
   31,039.68x = 46,558.30 × 7,665.52
4. Step 4: Simplify right side
   31,039.68x = 356,893,579.82
5. Step 5: Solve for x
   x = 356,893,579.82/31,039.68
6. Step 6: Final answer
   x = 11,497.98