Finding the Fourth Proportional to 76,137.26, 105,066.76 and 42,147.22

Step by Step Solution

1. Step 1: Write the proportion equation
   76,137.26 : 105,066.76 = 42,147.22 : x
2. Step 2: Convert to fraction form
   76,137.26/105,066.76 = 42,147.22/x
3. Step 3: Cross multiply
   76,137.26x = 105,066.76 × 42,147.22
4. Step 4: Simplify right side
   76,137.26x = 4,428,271,848.41
5. Step 5: Solve for x
   x = 4,428,271,848.41/76,137.26
6. Step 6: Final answer
   x = 58,161.69