Finding the Fourth Proportional to 437,196.84, 655,818.77 and 137,700.86

Step by Step Solution

1. Step 1: Write the proportion equation
   437,196.84 : 655,818.77 = 137,700.86 : x
2. Step 2: Convert to fraction form
   437,196.84/655,818.77 = 137,700.86/x
3. Step 3: Cross multiply
   437,196.84x = 655,818.77 × 137,700.86
4. Step 4: Simplify right side
   437,196.84x = 90,306,804,665.54
5. Step 5: Solve for x
   x = 90,306,804,665.54/437,196.84
6. Step 6: Final answer
   x = 206,558.69