Finding the Fourth Proportional to 52,812.10, 72,880.27 and 28,938.71

Step by Step Solution

1. Step 1: Write the proportion equation
   52,812.10 : 72,880.27 = 28,938.71 : x
2. Step 2: Convert to fraction form
   52,812.10/72,880.27 = 28,938.71/x
3. Step 3: Cross multiply
   52,812.10x = 72,880.27 × 28,938.71
4. Step 4: Simplify right side
   52,812.10x = 2,109,060,998.25
5. Step 5: Solve for x
   x = 2,109,060,998.25/52,812.10
6. Step 6: Final answer
   x = 39,935.19