Finding the Fourth Proportional to 76,160.43, 105,101.82 and 42,170.01

Step by Step Solution

1. Step 1: Write the proportion equation
   76,160.43 : 105,101.82 = 42,170.01 : x
2. Step 2: Convert to fraction form
   76,160.43/105,101.82 = 42,170.01/x
3. Step 3: Cross multiply
   76,160.43x = 105,101.82 × 42,170.01
4. Step 4: Simplify right side
   76,160.43x = 4,432,144,800.42
5. Step 5: Solve for x
   x = 4,432,144,800.42/76,160.43
6. Step 6: Final answer
   x = 58,194.85