Finding the Fourth Proportional to 52,300.28, 72,175.05 and 28,426.95

Step by Step Solution

1. Step 1: Write the proportion equation
   52,300.28 : 72,175.05 = 28,426.95 : x
2. Step 2: Convert to fraction form
   52,300.28/72,175.05 = 28,426.95/x
3. Step 3: Cross multiply
   52,300.28x = 72,175.05 × 28,426.95
4. Step 4: Simplify right side
   52,300.28x = 2,051,716,537.60
5. Step 5: Solve for x
   x = 2,051,716,537.60/52,300.28
6. Step 6: Final answer
   x = 39,229.55