Finding the Fourth Proportional to 89,483.72, 123,487.78 and 49,201.60

Step by Step Solution

1. Step 1: Write the proportion equation
   89,483.72 : 123,487.78 = 49,201.60 : x
2. Step 2: Convert to fraction form
   89,483.72/123,487.78 = 49,201.60/x
3. Step 3: Cross multiply
   89,483.72x = 123,487.78 × 49,201.60
4. Step 4: Simplify right side
   89,483.72x = 6,075,796,356.45
5. Step 5: Solve for x
   x = 6,075,796,356.45/89,483.72
6. Step 6: Final answer
   x = 67,898.34