Finding the Fourth Proportional to 89,114.72, 133,632.12 and 53,108.18

Step by Step Solution

1. Step 1: Write the proportion equation
   89,114.72 : 133,632.12 = 53,108.18 : x
2. Step 2: Convert to fraction form
   89,114.72/133,632.12 = 53,108.18/x
3. Step 3: Cross multiply
   89,114.72x = 133,632.12 × 53,108.18
4. Step 4: Simplify right side
   89,114.72x = 7,096,957,782.23
5. Step 5: Solve for x
   x = 7,096,957,782.23/89,114.72
6. Step 6: Final answer
   x = 79,638.45