Finding the Fourth Proportional to 161,100.76, 222,314.46 and 89,479

Step by Step Solution

1. Step 1: Write the proportion equation
   161,100.76 : 222,314.46 = 89,479 : x
2. Step 2: Convert to fraction form
   161,100.76/222,314.46 = 89,479/x
3. Step 3: Cross multiply
   161,100.76x = 222,314.46 × 89,479
4. Step 4: Simplify right side
   161,100.76x = 19,892,475,566.34
5. Step 5: Solve for x
   x = 19,892,475,566.34/161,100.76
6. Step 6: Final answer
   x = 123,478.47