Finding the Fourth Proportional to 89,131.18, 122,999.54 and 53,300.82

Step by Step Solution

1. Step 1: Write the proportion equation
   89,131.18 : 122,999.54 = 53,300.82 : x
2. Step 2: Convert to fraction form
   89,131.18/122,999.54 = 53,300.82/x
3. Step 3: Cross multiply
   89,131.18x = 122,999.54 × 53,300.82
4. Step 4: Simplify right side
   89,131.18x = 6,555,976,341.62
5. Step 5: Solve for x
   x = 6,555,976,341.62/89,131.18
6. Step 6: Final answer
   x = 73,554.24