Finding the Fourth Proportional to 29,978.52, 41,375.34 and 28,649.88

Step by Step Solution

1. Step 1: Write the proportion equation
   29,978.52 : 41,375.34 = 28,649.88 : x
2. Step 2: Convert to fraction form
   29,978.52/41,375.34 = 28,649.88/x
3. Step 3: Cross multiply
   29,978.52x = 41,375.34 × 28,649.88
4. Step 4: Simplify right side
   29,978.52x = 1,185,398,525.96
5. Step 5: Solve for x
   x = 1,185,398,525.96/29,978.52
6. Step 6: Final answer
   x = 39,541.60