Finding the Fourth Proportional to 89,336.59, 123,342.19 and 55,381.37

Step by Step Solution

1. Step 1: Write the proportion equation
   89,336.59 : 123,342.19 = 55,381.37 : x
2. Step 2: Convert to fraction form
   89,336.59/123,342.19 = 55,381.37/x
3. Step 3: Cross multiply
   89,336.59x = 123,342.19 × 55,381.37
4. Step 4: Simplify right side
   89,336.59x = 6,830,858,913.52
5. Step 5: Solve for x
   x = 6,830,858,913.52/89,336.59
6. Step 6: Final answer
   x = 76,462.05