Finding the Fourth Proportional to 105,593.82, 145,711.86 and 57,839.46

Step by Step Solution

1. Step 1: Write the proportion equation
   105,593.82 : 145,711.86 = 57,839.46 : x
2. Step 2: Convert to fraction form
   105,593.82/145,711.86 = 57,839.46/x
3. Step 3: Cross multiply
   105,593.82x = 145,711.86 × 57,839.46
4. Step 4: Simplify right side
   105,593.82x = 8,427,895,298.00
5. Step 5: Solve for x
   x = 8,427,895,298.00/105,593.82
6. Step 6: Final answer
   x = 79,814.29