Finding the Fourth Proportional to 76,160.96, 105,105.41 and 42,169.45

Step by Step Solution

1. Step 1: Write the proportion equation
   76,160.96 : 105,105.41 = 42,169.45 : x
2. Step 2: Convert to fraction form
   76,160.96/105,105.41 = 42,169.45/x
3. Step 3: Cross multiply
   76,160.96x = 105,105.41 × 42,169.45
4. Step 4: Simplify right side
   76,160.96x = 4,432,237,331.72
5. Step 5: Solve for x
   x = 4,432,237,331.72/76,160.96
6. Step 6: Final answer
   x = 58,195.66