Finding the Fourth Proportional to 147,585, 221,377.50 and 49,089

Step by Step Solution

1. Step 1: Write the proportion equation
   147,585 : 221,377.50 = 49,089 : x
2. Step 2: Convert to fraction form
   147,585/221,377.50 = 49,089/x
3. Step 3: Cross multiply
   147,585x = 221,377.50 × 49,089
4. Step 4: Simplify right side
   147,585x = 10,867,200,097.50
5. Step 5: Solve for x
   x = 10,867,200,097.50/147,585
6. Step 6: Final answer
   x = 73,633.50