Finding the Fourth Proportional to 52,164.74, 71,980.74 and 30,939.86

Step by Step Solution

1. Step 1: Write the proportion equation
   52,164.74 : 71,980.74 = 30,939.86 : x
2. Step 2: Convert to fraction form
   52,164.74/71,980.74 = 30,939.86/x
3. Step 3: Cross multiply
   52,164.74x = 71,980.74 × 30,939.86
4. Step 4: Simplify right side
   52,164.74x = 2,227,074,018.30
5. Step 5: Solve for x
   x = 2,227,074,018.30/52,164.74
6. Step 6: Final answer
   x = 42,693.09