Finding the Fourth Proportional to 42,500.88, 58,610.52 and 28,137.96

Step by Step Solution

1. Step 1: Write the proportion equation
   42,500.88 : 58,610.52 = 28,137.96 : x
2. Step 2: Convert to fraction form
   42,500.88/58,610.52 = 28,137.96/x
3. Step 3: Cross multiply
   42,500.88x = 58,610.52 × 28,137.96
4. Step 4: Simplify right side
   42,500.88x = 1,649,180,467.34
5. Step 5: Solve for x
   x = 1,649,180,467.34/42,500.88
6. Step 6: Final answer
   x = 38,803.44