Finding the Fourth Proportional to 386,084.84, 579,143.46 and 105,601.64

Step by Step Solution

1. Step 1: Write the proportion equation
   386,084.84 : 579,143.46 = 105,601.64 : x
2. Step 2: Convert to fraction form
   386,084.84/579,143.46 = 105,601.64/x
3. Step 3: Cross multiply
   386,084.84x = 579,143.46 × 105,601.64
4. Step 4: Simplify right side
   386,084.84x = 61,158,499,171.27
5. Step 5: Solve for x
   x = 61,158,499,171.27/386,084.84
6. Step 6: Final answer
   x = 158,406.89