Finding the Fourth Proportional to 89,299.47, 123,237.32 and 53,488.71

Step by Step Solution

1. Step 1: Write the proportion equation
   89,299.47 : 123,237.32 = 53,488.71 : x
2. Step 2: Convert to fraction form
   89,299.47/123,237.32 = 53,488.71/x
3. Step 3: Cross multiply
   89,299.47x = 123,237.32 × 53,488.71
4. Step 4: Simplify right side
   89,299.47x = 6,591,805,003.21
5. Step 5: Solve for x
   x = 6,591,805,003.21/89,299.47
6. Step 6: Final answer
   x = 73,816.84