Finding the Fourth Proportional to 89,084.64, 133,317.54 and 55,336.80

Step by Step Solution

1. Step 1: Write the proportion equation
   89,084.64 : 133,317.54 = 55,336.80 : x
2. Step 2: Convert to fraction form
   89,084.64/133,317.54 = 55,336.80/x
3. Step 3: Cross multiply
   89,084.64x = 133,317.54 × 55,336.80
4. Step 4: Simplify right side
   89,084.64x = 7,377,366,047.47
5. Step 5: Solve for x
   x = 7,377,366,047.47/89,084.64
6. Step 6: Final answer
   x = 82,813.00