Finding the Fourth Proportional to 22,471.58, 31,010.76 and 12,400.02

Step by Step Solution

1. Step 1: Write the proportion equation
   22,471.58 : 31,010.76 = 12,400.02 : x
2. Step 2: Convert to fraction form
   22,471.58/31,010.76 = 12,400.02/x
3. Step 3: Cross multiply
   22,471.58x = 31,010.76 × 12,400.02
4. Step 4: Simplify right side
   22,471.58x = 384,534,044.22
5. Step 5: Solve for x
   x = 384,534,044.22/22,471.58
6. Step 6: Final answer
   x = 17,112.01