Finding the Fourth Proportional to 52,736.17, 72,776.03 and 28,864.38

Step by Step Solution

1. Step 1: Write the proportion equation
   52,736.17 : 72,776.03 = 28,864.38 : x
2. Step 2: Convert to fraction form
   52,736.17/72,776.03 = 28,864.38/x
3. Step 3: Cross multiply
   52,736.17x = 72,776.03 × 28,864.38
4. Step 4: Simplify right side
   52,736.17x = 2,100,634,984.81
5. Step 5: Solve for x
   x = 2,100,634,984.81/52,736.17
6. Step 6: Final answer
   x = 39,832.91