Finding the Fourth Proportional to 89,233.07, 123,145.49 and 53,416.15

Step by Step Solution

1. Step 1: Write the proportion equation
   89,233.07 : 123,145.49 = 53,416.15 : x
2. Step 2: Convert to fraction form
   89,233.07/123,145.49 = 53,416.15/x
3. Step 3: Cross multiply
   89,233.07x = 123,145.49 × 53,416.15
4. Step 4: Simplify right side
   89,233.07x = 6,577,957,791.34
5. Step 5: Solve for x
   x = 6,577,957,791.34/89,233.07
6. Step 6: Final answer
   x = 73,716.60