Finding the Fourth Proportional to 89,203.19, 123,253.40 and 86,010.17

Step by Step Solution

1. Step 1: Write the proportion equation
   89,203.19 : 123,253.40 = 86,010.17 : x
2. Step 2: Convert to fraction form
   89,203.19/123,253.40 = 86,010.17/x
3. Step 3: Cross multiply
   89,203.19x = 123,253.40 × 86,010.17
4. Step 4: Simplify right side
   89,203.19x = 10,601,045,457.03
5. Step 5: Solve for x
   x = 10,601,045,457.03/89,203.19
6. Step 6: Final answer
   x = 118,841.55