Finding the Fourth Proportional to 31,098.52, 46,584.06 and 21,071.80

Step by Step Solution

1. Step 1: Write the proportion equation
   31,098.52 : 46,584.06 = 21,071.80 : x
2. Step 2: Convert to fraction form
   31,098.52/46,584.06 = 21,071.80/x
3. Step 3: Cross multiply
   31,098.52x = 46,584.06 × 21,071.80
4. Step 4: Simplify right side
   31,098.52x = 981,609,995.51
5. Step 5: Solve for x
   x = 981,609,995.51/31,098.52
6. Step 6: Final answer
   x = 31,564.52