Finding the Fourth Proportional to 76,488.86, 105,553.86 and 42,034.16

Step by Step Solution

1. Step 1: Write the proportion equation
   76,488.86 : 105,553.86 = 42,034.16 : x
2. Step 2: Convert to fraction form
   76,488.86/105,553.86 = 42,034.16/x
3. Step 3: Cross multiply
   76,488.86x = 105,553.86 × 42,034.16
4. Step 4: Simplify right side
   76,488.86x = 4,436,867,839.86
5. Step 5: Solve for x
   x = 4,436,867,839.86/76,488.86
6. Step 6: Final answer
   x = 58,006.72