Finding the Fourth Proportional to 105,903.69, 146,147.09 and 58,157.84

Step by Step Solution

1. Step 1: Write the proportion equation
   105,903.69 : 146,147.09 = 58,157.84 : x
2. Step 2: Convert to fraction form
   105,903.69/146,147.09 = 58,157.84/x
3. Step 3: Cross multiply
   105,903.69x = 146,147.09 × 58,157.84
4. Step 4: Simplify right side
   105,903.69x = 8,499,598,345.95
5. Step 5: Solve for x
   x = 8,499,598,345.95/105,903.69
6. Step 6: Final answer
   x = 80,257.81