Finding the Fourth Proportional to 31,128.17, 46,681.52 and 10,062.81

Step by Step Solution

1. Step 1: Write the proportion equation
   31,128.17 : 46,681.52 = 10,062.81 : x
2. Step 2: Convert to fraction form
   31,128.17/46,681.52 = 10,062.81/x
3. Step 3: Cross multiply
   31,128.17x = 46,681.52 × 10,062.81
4. Step 4: Simplify right side
   31,128.17x = 469,747,215.96
5. Step 5: Solve for x
   x = 469,747,215.96/31,128.17
6. Step 6: Final answer
   x = 15,090.75