Finding the Fourth Proportional to 78,479.50, 108,298.20 and 44,487.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,479.50 : 108,298.20 = 44,487.50 : x
2. Step 2: Convert to fraction form
   78,479.50/108,298.20 = 44,487.50/x
3. Step 3: Cross multiply
   78,479.50x = 108,298.20 × 44,487.50
4. Step 4: Simplify right side
   78,479.50x = 4,817,916,172.50
5. Step 5: Solve for x
   x = 4,817,916,172.50/78,479.50
6. Step 6: Final answer
   x = 61,390.76