Finding the Fourth Proportional to 22,933.94, 31,648.59 and 13,980.87

Step by Step Solution

1. Step 1: Write the proportion equation
   22,933.94 : 31,648.59 = 13,980.87 : x
2. Step 2: Convert to fraction form
   22,933.94/31,648.59 = 13,980.87/x
3. Step 3: Cross multiply
   22,933.94x = 31,648.59 × 13,980.87
4. Step 4: Simplify right side
   22,933.94x = 442,474,822.47
5. Step 5: Solve for x
   x = 442,474,822.47/22,933.94
6. Step 6: Final answer
   x = 19,293.45