Finding the Fourth Proportional to 105,788.34, 145,997.37 and 58,050.99

Step by Step Solution

1. Step 1: Write the proportion equation
   105,788.34 : 145,997.37 = 58,050.99 : x
2. Step 2: Convert to fraction form
   105,788.34/145,997.37 = 58,050.99/x
3. Step 3: Cross multiply
   105,788.34x = 145,997.37 × 58,050.99
4. Step 4: Simplify right side
   105,788.34x = 8,475,291,865.90
5. Step 5: Solve for x
   x = 8,475,291,865.90/105,788.34
6. Step 6: Final answer
   x = 80,115.56