Finding the Fourth Proportional to 52,741.96, 72,783.99 and 28,870.15

Step by Step Solution

1. Step 1: Write the proportion equation
   52,741.96 : 72,783.99 = 28,870.15 : x
2. Step 2: Convert to fraction form
   52,741.96/72,783.99 = 28,870.15/x
3. Step 3: Cross multiply
   52,741.96x = 72,783.99 × 28,870.15
4. Step 4: Simplify right side
   52,741.96x = 2,101,284,344.98
5. Step 5: Solve for x
   x = 2,101,284,344.98/52,741.96
6. Step 6: Final answer
   x = 39,840.85