Finding the Fourth Proportional to 56,172.50, 84,323.56 and 28,528.82

Step by Step Solution

1. Step 1: Write the proportion equation
   56,172.50 : 84,323.56 = 28,528.82 : x
2. Step 2: Convert to fraction form
   56,172.50/84,323.56 = 28,528.82/x
3. Step 3: Cross multiply
   56,172.50x = 84,323.56 × 28,528.82
4. Step 4: Simplify right side
   56,172.50x = 2,405,651,665.00
5. Step 5: Solve for x
   x = 2,405,651,665.00/56,172.50
6. Step 6: Final answer
   x = 42,826.15