Finding the Fourth Proportional to 52,389.96, 72,298.89 and 28,517.37

Step by Step Solution

1. Step 1: Write the proportion equation
   52,389.96 : 72,298.89 = 28,517.37 : x
2. Step 2: Convert to fraction form
   52,389.96/72,298.89 = 28,517.37/x
3. Step 3: Cross multiply
   52,389.96x = 72,298.89 × 28,517.37
4. Step 4: Simplify right side
   52,389.96x = 2,061,774,196.72
5. Step 5: Solve for x
   x = 2,061,774,196.72/52,389.96
6. Step 6: Final answer
   x = 39,354.38