Finding the Fourth Proportional to 37,640.34, 56,649.15 and 28,328.58

Step by Step Solution

1. Step 1: Write the proportion equation
   37,640.34 : 56,649.15 = 28,328.58 : x
2. Step 2: Convert to fraction form
   37,640.34/56,649.15 = 28,328.58/x
3. Step 3: Cross multiply
   37,640.34x = 56,649.15 × 28,328.58
4. Step 4: Simplify right side
   37,640.34x = 1,604,789,977.71
5. Step 5: Solve for x
   x = 1,604,789,977.71/37,640.34
6. Step 6: Final answer
   x = 42,634.84