Finding the Fourth Proportional to 76,072.34, 104,975.52 and 42,079.62

Step by Step Solution

1. Step 1: Write the proportion equation
   76,072.34 : 104,975.52 = 42,079.62 : x
2. Step 2: Convert to fraction form
   76,072.34/104,975.52 = 42,079.62/x
3. Step 3: Cross multiply
   76,072.34x = 104,975.52 × 42,079.62
4. Step 4: Simplify right side
   76,072.34x = 4,417,329,990.90
5. Step 5: Solve for x
   x = 4,417,329,990.90/76,072.34
6. Step 6: Final answer
   x = 58,067.49