Finding the Fourth Proportional to 185,915.94, 256,532.31 and 105,326.82

Step by Step Solution

1. Step 1: Write the proportion equation
   185,915.94 : 256,532.31 = 105,326.82 : x
2. Step 2: Convert to fraction form
   185,915.94/256,532.31 = 105,326.82/x
3. Step 3: Cross multiply
   185,915.94x = 256,532.31 × 105,326.82
4. Step 4: Simplify right side
   185,915.94x = 27,019,732,439.55
5. Step 5: Solve for x
   x = 27,019,732,439.55/185,915.94
6. Step 6: Final answer
   x = 145,333.06