Finding the Fourth Proportional to 101,544.18, 140,145.72 and 58,515.30

Step by Step Solution

1. Step 1: Write the proportion equation
   101,544.18 : 140,145.72 = 58,515.30 : x
2. Step 2: Convert to fraction form
   101,544.18/140,145.72 = 58,515.30/x
3. Step 3: Cross multiply
   101,544.18x = 140,145.72 × 58,515.30
4. Step 4: Simplify right side
   101,544.18x = 8,200,668,849.52
5. Step 5: Solve for x
   x = 8,200,668,849.52/101,544.18
6. Step 6: Final answer
   x = 80,759.61