Finding the Fourth Proportional to 45,196.88, 62,350.60 and 28,439.12

Step by Step Solution

1. Step 1: Write the proportion equation
   45,196.88 : 62,350.60 = 28,439.12 : x
2. Step 2: Convert to fraction form
   45,196.88/62,350.60 = 28,439.12/x
3. Step 3: Cross multiply
   45,196.88x = 62,350.60 × 28,439.12
4. Step 4: Simplify right side
   45,196.88x = 1,773,196,195.47
5. Step 5: Solve for x
   x = 1,773,196,195.47/45,196.88
6. Step 6: Final answer
   x = 39,232.71