Finding the Fourth Proportional to 89,350.59, 133,690.89 and 53,194.80

Step by Step Solution

1. Step 1: Write the proportion equation
   89,350.59 : 133,690.89 = 53,194.80 : x
2. Step 2: Convert to fraction form
   89,350.59/133,690.89 = 53,194.80/x
3. Step 3: Cross multiply
   89,350.59x = 133,690.89 × 53,194.80
4. Step 4: Simplify right side
   89,350.59x = 7,111,660,155.37
5. Step 5: Solve for x
   x = 7,111,660,155.37/89,350.59
6. Step 6: Final answer
   x = 79,592.76