Finding the Fourth Proportional to 52,294.71, 72,167.25 and 28,421.38

Step by Step Solution

1. Step 1: Write the proportion equation
   52,294.71 : 72,167.25 = 28,421.38 : x
2. Step 2: Convert to fraction form
   52,294.71/72,167.25 = 28,421.38/x
3. Step 3: Cross multiply
   52,294.71x = 72,167.25 × 28,421.38
4. Step 4: Simplify right side
   52,294.71x = 2,051,093,032.59
5. Step 5: Solve for x
   x = 2,051,093,032.59/52,294.71
6. Step 6: Final answer
   x = 39,221.81