Finding the Fourth Proportional to 60,238.89, 90,235.62 and 28,552.91

Step by Step Solution

1. Step 1: Write the proportion equation
   60,238.89 : 90,235.62 = 28,552.91 : x
2. Step 2: Convert to fraction form
   60,238.89/90,235.62 = 28,552.91/x
3. Step 3: Cross multiply
   60,238.89x = 90,235.62 × 28,552.91
4. Step 4: Simplify right side
   60,238.89x = 2,576,489,085.48
5. Step 5: Solve for x
   x = 2,576,489,085.48/60,238.89
6. Step 6: Final answer
   x = 42,771.19