Finding the Fourth Proportional to 76,134.25, 105,062.63 and 42,144.22

Step by Step Solution

1. Step 1: Write the proportion equation
   76,134.25 : 105,062.63 = 42,144.22 : x
2. Step 2: Convert to fraction form
   76,134.25/105,062.63 = 42,144.22/x
3. Step 3: Cross multiply
   76,134.25x = 105,062.63 × 42,144.22
4. Step 4: Simplify right side
   76,134.25x = 4,427,782,592.50
5. Step 5: Solve for x
   x = 4,427,782,592.50/76,134.25
6. Step 6: Final answer
   x = 58,157.56