Finding the Fourth Proportional to 89,483.64, 123,487.50 and 49,200

Step by Step Solution

1. Step 1: Write the proportion equation
   89,483.64 : 123,487.50 = 49,200 : x
2. Step 2: Convert to fraction form
   89,483.64/123,487.50 = 49,200/x
3. Step 3: Cross multiply
   89,483.64x = 123,487.50 × 49,200
4. Step 4: Simplify right side
   89,483.64x = 6,075,585,000
5. Step 5: Solve for x
   x = 6,075,585,000/89,483.64
6. Step 6: Final answer
   x = 67,896.04