Finding the Fourth Proportional to 72,573.35, 108,866.90 and 28,203.52

Step by Step Solution

1. Step 1: Write the proportion equation
   72,573.35 : 108,866.90 = 28,203.52 : x
2. Step 2: Convert to fraction form
   72,573.35/108,866.90 = 28,203.52/x
3. Step 3: Cross multiply
   72,573.35x = 108,866.90 × 28,203.52
4. Step 4: Simplify right side
   72,573.35x = 3,070,429,791.49
5. Step 5: Solve for x
   x = 3,070,429,791.49/72,573.35
6. Step 6: Final answer
   x = 42,307.95