Finding the Fourth Proportional to 168,978.72, 253,524.24 and 56,670

Step by Step Solution

1. Step 1: Write the proportion equation
   168,978.72 : 253,524.24 = 56,670 : x
2. Step 2: Convert to fraction form
   168,978.72/253,524.24 = 56,670/x
3. Step 3: Cross multiply
   168,978.72x = 253,524.24 × 56,670
4. Step 4: Simplify right side
   168,978.72x = 14,367,218,680.80
5. Step 5: Solve for x
   x = 14,367,218,680.80/168,978.72
6. Step 6: Final answer
   x = 85,023.83