Finding the Fourth Proportional to 52,213.24, 72,072.98 and 30,992.50

Step by Step Solution

1. Step 1: Write the proportion equation
   52,213.24 : 72,072.98 = 30,992.50 : x
2. Step 2: Convert to fraction form
   52,213.24/72,072.98 = 30,992.50/x
3. Step 3: Cross multiply
   52,213.24x = 72,072.98 × 30,992.50
4. Step 4: Simplify right side
   52,213.24x = 2,233,721,832.65
5. Step 5: Solve for x
   x = 2,233,721,832.65/52,213.24
6. Step 6: Final answer
   x = 42,780.76