Finding the Fourth Proportional to 69,488.72, 95,900.33 and 58,138.19

Step by Step Solution

1. Step 1: Write the proportion equation
   69,488.72 : 95,900.33 = 58,138.19 : x
2. Step 2: Convert to fraction form
   69,488.72/95,900.33 = 58,138.19/x
3. Step 3: Cross multiply
   69,488.72x = 95,900.33 × 58,138.19
4. Step 4: Simplify right side
   69,488.72x = 5,575,470,836.41
5. Step 5: Solve for x
   x = 5,575,470,836.41/69,488.72
6. Step 6: Final answer
   x = 80,235.63