Finding the Fourth Proportional to 249,123.02, 343,786.56 and 135,938.48

Step by Step Solution

1. Step 1: Write the proportion equation
   249,123.02 : 343,786.56 = 135,938.48 : x
2. Step 2: Convert to fraction form
   249,123.02/343,786.56 = 135,938.48/x
3. Step 3: Cross multiply
   249,123.02x = 343,786.56 × 135,938.48
4. Step 4: Simplify right side
   249,123.02x = 46,733,822,410.83
5. Step 5: Solve for x
   x = 46,733,822,410.83/249,123.02
6. Step 6: Final answer
   x = 187,593.35