Finding the Fourth Proportional to 245,768.34, 339,123.69 and 138,332.01

Step by Step Solution

1. Step 1: Write the proportion equation
   245,768.34 : 339,123.69 = 138,332.01 : x
2. Step 2: Convert to fraction form
   245,768.34/339,123.69 = 138,332.01/x
3. Step 3: Cross multiply
   245,768.34x = 339,123.69 × 138,332.01
4. Step 4: Simplify right side
   245,768.34x = 46,911,661,676.32
5. Step 5: Solve for x
   x = 46,911,661,676.32/245,768.34
6. Step 6: Final answer
   x = 190,877.56