Finding the Fourth Proportional to 105,087.59, 157,575.72 and 45,854.09

Step by Step Solution

1. Step 1: Write the proportion equation
   105,087.59 : 157,575.72 = 45,854.09 : x
2. Step 2: Convert to fraction form
   105,087.59/157,575.72 = 45,854.09/x
3. Step 3: Cross multiply
   105,087.59x = 157,575.72 × 45,854.09
4. Step 4: Simplify right side
   105,087.59x = 7,225,491,246.69
5. Step 5: Solve for x
   x = 7,225,491,246.69/105,087.59
6. Step 6: Final answer
   x = 68,756.85