Finding the Fourth Proportional to 51,075.58, 70,485.25 and 28,416.68

Step by Step Solution

1. Step 1: Write the proportion equation
   51,075.58 : 70,485.25 = 28,416.68 : x
2. Step 2: Convert to fraction form
   51,075.58/70,485.25 = 28,416.68/x
3. Step 3: Cross multiply
   51,075.58x = 70,485.25 × 28,416.68
4. Step 4: Simplify right side
   51,075.58x = 2,002,956,651.89
5. Step 5: Solve for x
   x = 2,002,956,651.89/51,075.58
6. Step 6: Final answer
   x = 39,215.54