Finding the Fourth Proportional to 89,464.73, 123,430.43 and 55,460.75

Step by Step Solution

1. Step 1: Write the proportion equation
   89,464.73 : 123,430.43 = 55,460.75 : x
2. Step 2: Convert to fraction form
   89,464.73/123,430.43 = 55,460.75/x
3. Step 3: Cross multiply
   89,464.73x = 123,430.43 × 55,460.75
4. Step 4: Simplify right side
   89,464.73x = 6,845,543,326.17
5. Step 5: Solve for x
   x = 6,845,543,326.17/89,464.73
6. Step 6: Final answer
   x = 76,516.68