Finding the Fourth Proportional to 89,398.57, 123,315.30 and 53,075.37

Step by Step Solution

1. Step 1: Write the proportion equation
   89,398.57 : 123,315.30 = 53,075.37 : x
2. Step 2: Convert to fraction form
   89,398.57/123,315.30 = 53,075.37/x
3. Step 3: Cross multiply
   89,398.57x = 123,315.30 × 53,075.37
4. Step 4: Simplify right side
   89,398.57x = 6,545,005,174.16
5. Step 5: Solve for x
   x = 6,545,005,174.16/89,398.57
6. Step 6: Final answer
   x = 73,211.52