Finding the Fourth Proportional to 89,498.28, 123,476.90 and 55,494.53

Step by Step Solution

1. Step 1: Write the proportion equation
   89,498.28 : 123,476.90 = 55,494.53 : x
2. Step 2: Convert to fraction form
   89,498.28/123,476.90 = 55,494.53/x
3. Step 3: Cross multiply
   89,498.28x = 123,476.90 × 55,494.53
4. Step 4: Simplify right side
   89,498.28x = 6,852,291,945.19
5. Step 5: Solve for x
   x = 6,852,291,945.19/89,498.28
6. Step 6: Final answer
   x = 76,563.39