Finding the Fourth Proportional to 78,479, 108,297.50 and 44,487

Step by Step Solution

1. Step 1: Write the proportion equation
   78,479 : 108,297.50 = 44,487 : x
2. Step 2: Convert to fraction form
   78,479/108,297.50 = 44,487/x
3. Step 3: Cross multiply
   78,479x = 108,297.50 × 44,487
4. Step 4: Simplify right side
   78,479x = 4,817,830,882.50
5. Step 5: Solve for x
   x = 4,817,830,882.50/78,479
6. Step 6: Final answer
   x = 61,390.06