Finding the Fourth Proportional to 61,478.94, 85,181.25 and 60,150.54

Step by Step Solution

1. Step 1: Write the proportion equation
   61,478.94 : 85,181.25 = 60,150.54 : x
2. Step 2: Convert to fraction form
   61,478.94/85,181.25 = 60,150.54/x
3. Step 3: Cross multiply
   61,478.94x = 85,181.25 × 60,150.54
4. Step 4: Simplify right side
   61,478.94x = 5,123,698,185.38
5. Step 5: Solve for x
   x = 5,123,698,185.38/61,478.94
6. Step 6: Final answer
   x = 83,340.70