Finding the Fourth Proportional to 108,086.46, 149,221.57 and 71,837.06

Step by Step Solution

1. Step 1: Write the proportion equation
   108,086.46 : 149,221.57 = 71,837.06 : x
2. Step 2: Convert to fraction form
   108,086.46/149,221.57 = 71,837.06/x
3. Step 3: Cross multiply
   108,086.46x = 149,221.57 × 71,837.06
4. Step 4: Simplify right side
   108,086.46x = 10,719,638,877.38
5. Step 5: Solve for x
   x = 10,719,638,877.38/108,086.46
6. Step 6: Final answer
   x = 99,176.52