Finding the Fourth Proportional to 76,147.22, 105,078.16 and 42,153.35

Step by Step Solution

1. Step 1: Write the proportion equation
   76,147.22 : 105,078.16 = 42,153.35 : x
2. Step 2: Convert to fraction form
   76,147.22/105,078.16 = 42,153.35/x
3. Step 3: Cross multiply
   76,147.22x = 105,078.16 × 42,153.35
4. Step 4: Simplify right side
   76,147.22x = 4,429,395,983.14
5. Step 5: Solve for x
   x = 4,429,395,983.14/76,147.22
6. Step 6: Final answer
   x = 58,168.85