Finding the Fourth Proportional to 56,288.97, 84,530.04 and 49,978.10

Step by Step Solution

1. Step 1: Write the proportion equation
   56,288.97 : 84,530.04 = 49,978.10 : x
2. Step 2: Convert to fraction form
   56,288.97/84,530.04 = 49,978.10/x
3. Step 3: Cross multiply
   56,288.97x = 84,530.04 × 49,978.10
4. Step 4: Simplify right side
   56,288.97x = 4,224,651,255.65
5. Step 5: Solve for x
   x = 4,224,651,255.65/56,288.97
6. Step 6: Final answer
   x = 75,052.92