Finding the Fourth Proportional to 76,304.05, 105,300.86 and 42,313.97

Step by Step Solution

1. Step 1: Write the proportion equation
   76,304.05 : 105,300.86 = 42,313.97 : x
2. Step 2: Convert to fraction form
   76,304.05/105,300.86 = 42,313.97/x
3. Step 3: Cross multiply
   76,304.05x = 105,300.86 × 42,313.97
4. Step 4: Simplify right side
   76,304.05x = 4,455,697,010.29
5. Step 5: Solve for x
   x = 4,455,697,010.29/76,304.05
6. Step 6: Final answer
   x = 58,393.98