Finding the Fourth Proportional to 124,185.43, 186,315.18 and 57,681.46

Step by Step Solution

1. Step 1: Write the proportion equation
   124,185.43 : 186,315.18 = 57,681.46 : x
2. Step 2: Convert to fraction form
   124,185.43/186,315.18 = 57,681.46/x
3. Step 3: Cross multiply
   124,185.43x = 186,315.18 × 57,681.46
4. Step 4: Simplify right side
   124,185.43x = 10,746,931,602.56
5. Step 5: Solve for x
   x = 10,746,931,602.56/124,185.43
6. Step 6: Final answer
   x = 86,539.39