Finding the Fourth Proportional to 52,741.62, 72,783.30 and 28,868.09

Step by Step Solution

1. Step 1: Write the proportion equation
   52,741.62 : 72,783.30 = 28,868.09 : x
2. Step 2: Convert to fraction form
   52,741.62/72,783.30 = 28,868.09/x
3. Step 3: Cross multiply
   52,741.62x = 72,783.30 × 28,868.09
4. Step 4: Simplify right side
   52,741.62x = 2,101,114,490.98
5. Step 5: Solve for x
   x = 2,101,114,490.98/52,741.62
6. Step 6: Final answer
   x = 39,837.88