Finding the Fourth Proportional to 89,409.50, 123,380.70 and 53,592.56

Step by Step Solution

1. Step 1: Write the proportion equation
   89,409.50 : 123,380.70 = 53,592.56 : x
2. Step 2: Convert to fraction form
   89,409.50/123,380.70 = 53,592.56/x
3. Step 3: Cross multiply
   89,409.50x = 123,380.70 × 53,592.56
4. Step 4: Simplify right side
   89,409.50x = 6,612,287,567.59
5. Step 5: Solve for x
   x = 6,612,287,567.59/89,409.50
6. Step 6: Final answer
   x = 73,955.09