Finding the Fourth Proportional to 89,513.87, 123,526.55 and 51,272.15

Step by Step Solution

1. Step 1: Write the proportion equation
   89,513.87 : 123,526.55 = 51,272.15 : x
2. Step 2: Convert to fraction form
   89,513.87/123,526.55 = 51,272.15/x
3. Step 3: Cross multiply
   89,513.87x = 123,526.55 × 51,272.15
4. Step 4: Simplify right side
   89,513.87x = 6,333,471,311.13
5. Step 5: Solve for x
   x = 6,333,471,311.13/89,513.87
6. Step 6: Final answer
   x = 70,754.08