Finding the Fourth Proportional to 78,084.58, 107,757.58 and 42,275.36

Step by Step Solution

1. Step 1: Write the proportion equation
   78,084.58 : 107,757.58 = 42,275.36 : x
2. Step 2: Convert to fraction form
   78,084.58/107,757.58 = 42,275.36/x
3. Step 3: Cross multiply
   78,084.58x = 107,757.58 × 42,275.36
4. Step 4: Simplify right side
   78,084.58x = 4,555,490,487.23
5. Step 5: Solve for x
   x = 4,555,490,487.23/78,084.58
6. Step 6: Final answer
   x = 58,340.46