Finding the Fourth Proportional to 60,221.98, 83,145.33 and 38,721.38

Step by Step Solution

1. Step 1: Write the proportion equation
   60,221.98 : 83,145.33 = 38,721.38 : x
2. Step 2: Convert to fraction form
   60,221.98/83,145.33 = 38,721.38/x
3. Step 3: Cross multiply
   60,221.98x = 83,145.33 × 38,721.38
4. Step 4: Simplify right side
   60,221.98x = 3,219,501,502.43
5. Step 5: Solve for x
   x = 3,219,501,502.43/60,221.98
6. Step 6: Final answer
   x = 53,460.57