Finding the Fourth Proportional to 45,861.98, 63,262.72 and 28,839.28

Step by Step Solution

1. Step 1: Write the proportion equation
   45,861.98 : 63,262.72 = 28,839.28 : x
2. Step 2: Convert to fraction form
   45,861.98/63,262.72 = 28,839.28/x
3. Step 3: Cross multiply
   45,861.98x = 63,262.72 × 28,839.28
4. Step 4: Simplify right side
   45,861.98x = 1,824,450,835.13
5. Step 5: Solve for x
   x = 1,824,450,835.13/45,861.98
6. Step 6: Final answer
   x = 39,781.34