Finding the Fourth Proportional to 107,696.39, 148,745.43 and 71,824.05

Step by Step Solution

1. Step 1: Write the proportion equation
   107,696.39 : 148,745.43 = 71,824.05 : x
2. Step 2: Convert to fraction form
   107,696.39/148,745.43 = 71,824.05/x
3. Step 3: Cross multiply
   107,696.39x = 148,745.43 × 71,824.05
4. Step 4: Simplify right side
   107,696.39x = 10,683,499,201.59
5. Step 5: Solve for x
   x = 10,683,499,201.59/107,696.39
6. Step 6: Final answer
   x = 99,200.17