Finding the Fourth Proportional to 52,140.84, 71,954.72 and 28,267.89

Step by Step Solution

1. Step 1: Write the proportion equation
   52,140.84 : 71,954.72 = 28,267.89 : x
2. Step 2: Convert to fraction form
   52,140.84/71,954.72 = 28,267.89/x
3. Step 3: Cross multiply
   52,140.84x = 71,954.72 × 28,267.89
4. Step 4: Simplify right side
   52,140.84x = 2,034,007,968.60
5. Step 5: Solve for x
   x = 2,034,007,968.60/52,140.84
6. Step 6: Final answer
   x = 39,009.88