Finding the Fourth Proportional to 22,773.50, 31,427.43 and 12,837.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,773.50 : 31,427.43 = 12,837.50 : x
2. Step 2: Convert to fraction form
   22,773.50/31,427.43 = 12,837.50/x
3. Step 3: Cross multiply
   22,773.50x = 31,427.43 × 12,837.50
4. Step 4: Simplify right side
   22,773.50x = 403,449,632.63
5. Step 5: Solve for x
   x = 403,449,632.63/22,773.50
6. Step 6: Final answer
   x = 17,715.75