Finding the Fourth Proportional to 89,200.56, 123,107.40 and 51,474

Step by Step Solution

1. Step 1: Write the proportion equation
   89,200.56 : 123,107.40 = 51,474 : x
2. Step 2: Convert to fraction form
   89,200.56/123,107.40 = 51,474/x
3. Step 3: Cross multiply
   89,200.56x = 123,107.40 × 51,474
4. Step 4: Simplify right side
   89,200.56x = 6,336,830,307.60
5. Step 5: Solve for x
   x = 6,336,830,307.60/89,200.56
6. Step 6: Final answer
   x = 71,040.25