Finding the Fourth Proportional to 89,552.56, 123,665.52 and 57,776.08

Step by Step Solution

1. Step 1: Write the proportion equation
   89,552.56 : 123,665.52 = 57,776.08 : x
2. Step 2: Convert to fraction form
   89,552.56/123,665.52 = 57,776.08/x
3. Step 3: Cross multiply
   89,552.56x = 123,665.52 × 57,776.08
4. Step 4: Simplify right side
   89,552.56x = 7,144,908,976.76
5. Step 5: Solve for x
   x = 7,144,908,976.76/89,552.56
6. Step 6: Final answer
   x = 79,784.53