Finding the Fourth Proportional to 78,096.32, 107,772.90 and 42,286.64

Step by Step Solution

1. Step 1: Write the proportion equation
   78,096.32 : 107,772.90 = 42,286.64 : x
2. Step 2: Convert to fraction form
   78,096.32/107,772.90 = 42,286.64/x
3. Step 3: Cross multiply
   78,096.32x = 107,772.90 × 42,286.64
4. Step 4: Simplify right side
   78,096.32x = 4,557,353,824.06
5. Step 5: Solve for x
   x = 4,557,353,824.06/78,096.32
6. Step 6: Final answer
   x = 58,355.55