Finding the Fourth Proportional to 105,484.14, 145,539.32 and 60,145.59

Step by Step Solution

1. Step 1: Write the proportion equation
   105,484.14 : 145,539.32 = 60,145.59 : x
2. Step 2: Convert to fraction form
   105,484.14/145,539.32 = 60,145.59/x
3. Step 3: Cross multiply
   105,484.14x = 145,539.32 × 60,145.59
4. Step 4: Simplify right side
   105,484.14x = 8,753,547,692.27
5. Step 5: Solve for x
   x = 8,753,547,692.27/105,484.14
6. Step 6: Final answer
   x = 82,984.49