Finding the Fourth Proportional to 76,180.19, 105,113.73 and 42,187.02

Step by Step Solution

1. Step 1: Write the proportion equation
   76,180.19 : 105,113.73 = 42,187.02 : x
2. Step 2: Convert to fraction form
   76,180.19/105,113.73 = 42,187.02/x
3. Step 3: Cross multiply
   76,180.19x = 105,113.73 × 42,187.02
4. Step 4: Simplify right side
   76,180.19x = 4,434,435,029.78
5. Step 5: Solve for x
   x = 4,434,435,029.78/76,180.19
6. Step 6: Final answer
   x = 58,209.82