Finding the Fourth Proportional to 167,580.71, 231,262.89 and 91,099.96

Step by Step Solution

1. Step 1: Write the proportion equation
   167,580.71 : 231,262.89 = 91,099.96 : x
2. Step 2: Convert to fraction form
   167,580.71/231,262.89 = 91,099.96/x
3. Step 3: Cross multiply
   167,580.71x = 231,262.89 × 91,099.96
4. Step 4: Simplify right side
   167,580.71x = 21,068,039,450.33
5. Step 5: Solve for x
   x = 21,068,039,450.33/167,580.71
6. Step 6: Final answer
   x = 125,718.76