Finding the Fourth Proportional to 76,144.67, 105,078.38 and 42,152.46

Step by Step Solution

1. Step 1: Write the proportion equation
   76,144.67 : 105,078.38 = 42,152.46 : x
2. Step 2: Convert to fraction form
   76,144.67/105,078.38 = 42,152.46/x
3. Step 3: Cross multiply
   76,144.67x = 105,078.38 × 42,152.46
4. Step 4: Simplify right side
   76,144.67x = 4,429,312,209.81
5. Step 5: Solve for x
   x = 4,429,312,209.81/76,144.67
6. Step 6: Final answer
   x = 58,169.69