Finding the Fourth Proportional to 167,570.91, 231,222.06 and 99,562.71

Step by Step Solution

1. Step 1: Write the proportion equation
   167,570.91 : 231,222.06 = 99,562.71 : x
2. Step 2: Convert to fraction form
   167,570.91/231,222.06 = 99,562.71/x
3. Step 3: Cross multiply
   167,570.91x = 231,222.06 × 99,562.71
4. Step 4: Simplify right side
   167,570.91x = 23,021,094,905.38
5. Step 5: Solve for x
   x = 23,021,094,905.38/167,570.91
6. Step 6: Final answer
   x = 137,381.21