Finding the Fourth Proportional to 558,520, 837,767.52 and 137,799.52

Step by Step Solution

1. Step 1: Write the proportion equation
   558,520 : 837,767.52 = 137,799.52 : x
2. Step 2: Convert to fraction form
   558,520/837,767.52 = 137,799.52/x
3. Step 3: Cross multiply
   558,520x = 837,767.52 × 137,799.52
4. Step 4: Simplify right side
   558,520x = 115,443,962,127.59
5. Step 5: Solve for x
   x = 115,443,962,127.59/558,520
6. Step 6: Final answer
   x = 206,696.20