Finding the Fourth Proportional to 39,123.76, 53,985 and 22,123.48

Step by Step Solution

1. Step 1: Write the proportion equation
   39,123.76 : 53,985 = 22,123.48 : x
2. Step 2: Convert to fraction form
   39,123.76/53,985 = 22,123.48/x
3. Step 3: Cross multiply
   39,123.76x = 53,985 × 22,123.48
4. Step 4: Simplify right side
   39,123.76x = 1,194,336,067.80
5. Step 5: Solve for x
   x = 1,194,336,067.80/39,123.76
6. Step 6: Final answer
   x = 30,527.13