Finding the Fourth Proportional to 76,171.47, 105,116.04 and 42,179.82

Step by Step Solution

1. Step 1: Write the proportion equation
   76,171.47 : 105,116.04 = 42,179.82 : x
2. Step 2: Convert to fraction form
   76,171.47/105,116.04 = 42,179.82/x
3. Step 3: Cross multiply
   76,171.47x = 105,116.04 × 42,179.82
4. Step 4: Simplify right side
   76,171.47x = 4,433,775,646.31
5. Step 5: Solve for x
   x = 4,433,775,646.31/76,171.47
6. Step 6: Final answer
   x = 58,207.83