Finding the Fourth Proportional to 82,245.86, 123,343.94 and 42,781.44

Step by Step Solution

1. Step 1: Write the proportion equation
   82,245.86 : 123,343.94 = 42,781.44 : x
2. Step 2: Convert to fraction form
   82,245.86/123,343.94 = 42,781.44/x
3. Step 3: Cross multiply
   82,245.86x = 123,343.94 × 42,781.44
4. Step 4: Simplify right side
   82,245.86x = 5,276,831,470.74
5. Step 5: Solve for x
   x = 5,276,831,470.74/82,245.86
6. Step 6: Final answer
   x = 64,159.24