Finding the Fourth Proportional to 297,501.69, 445,873.41 and 139,381.59

Step by Step Solution

1. Step 1: Write the proportion equation
   297,501.69 : 445,873.41 = 139,381.59 : x
2. Step 2: Convert to fraction form
   297,501.69/445,873.41 = 139,381.59/x
3. Step 3: Cross multiply
   297,501.69x = 445,873.41 × 139,381.59
4. Step 4: Simplify right side
   297,501.69x = 62,146,544,824.52
5. Step 5: Solve for x
   x = 62,146,544,824.52/297,501.69
6. Step 6: Final answer
   x = 208,894.76