Finding the Fourth Proportional to 78,107.48, 107,788.38 and 42,297.53

Step by Step Solution

1. Step 1: Write the proportion equation
   78,107.48 : 107,788.38 = 42,297.53 : x
2. Step 2: Convert to fraction form
   78,107.48/107,788.38 = 42,297.53/x
3. Step 3: Cross multiply
   78,107.48x = 107,788.38 × 42,297.53
4. Step 4: Simplify right side
   78,107.48x = 4,559,182,236.70
5. Step 5: Solve for x
   x = 4,559,182,236.70/78,107.48
6. Step 6: Final answer
   x = 58,370.62