Finding the Fourth Proportional to 22,533.72, 31,095.54 and 12,973.20

Step by Step Solution

1. Step 1: Write the proportion equation
   22,533.72 : 31,095.54 = 12,973.20 : x
2. Step 2: Convert to fraction form
   22,533.72/31,095.54 = 12,973.20/x
3. Step 3: Cross multiply
   22,533.72x = 31,095.54 × 12,973.20
4. Step 4: Simplify right side
   22,533.72x = 403,408,659.53
5. Step 5: Solve for x
   x = 403,408,659.53/22,533.72
6. Step 6: Final answer
   x = 17,902.44