Finding the Fourth Proportional to 52,864.72, 72,955.42 and 28,992.24

Step by Step Solution

1. Step 1: Write the proportion equation
   52,864.72 : 72,955.42 = 28,992.24 : x
2. Step 2: Convert to fraction form
   52,864.72/72,955.42 = 28,992.24/x
3. Step 3: Cross multiply
   52,864.72x = 72,955.42 × 28,992.24
4. Step 4: Simplify right side
   52,864.72x = 2,115,141,045.94
5. Step 5: Solve for x
   x = 2,115,141,045.94/52,864.72
6. Step 6: Final answer
   x = 40,010.45