Finding the Fourth Proportional to 123,838.60, 185,752.86 and 57,256.84

Step by Step Solution

1. Step 1: Write the proportion equation
   123,838.60 : 185,752.86 = 57,256.84 : x
2. Step 2: Convert to fraction form
   123,838.60/185,752.86 = 57,256.84/x
3. Step 3: Cross multiply
   123,838.60x = 185,752.86 × 57,256.84
4. Step 4: Simplify right side
   123,838.60x = 10,635,621,784.56
5. Step 5: Solve for x
   x = 10,635,621,784.56/123,838.60
6. Step 6: Final answer
   x = 85,882.93