Finding the Fourth Proportional to 22,784.56, 31,442.58 and 12,848.56

Step by Step Solution

1. Step 1: Write the proportion equation
   22,784.56 : 31,442.58 = 12,848.56 : x
2. Step 2: Convert to fraction form
   22,784.56/31,442.58 = 12,848.56/x
3. Step 3: Cross multiply
   22,784.56x = 31,442.58 × 12,848.56
4. Step 4: Simplify right side
   22,784.56x = 403,991,875.68
5. Step 5: Solve for x
   x = 403,991,875.68/22,784.56
6. Step 6: Final answer
   x = 17,730.95