Finding the Fourth Proportional to 40,685.49, 56,147.58 and 22,780.34

Step by Step Solution

1. Step 1: Write the proportion equation
   40,685.49 : 56,147.58 = 22,780.34 : x
2. Step 2: Convert to fraction form
   40,685.49/56,147.58 = 22,780.34/x
3. Step 3: Cross multiply
   40,685.49x = 56,147.58 × 22,780.34
4. Step 4: Simplify right side
   40,685.49x = 1,279,060,892.39
5. Step 5: Solve for x
   x = 1,279,060,892.39/40,685.49
6. Step 6: Final answer
   x = 31,437.77