Finding the Fourth Proportional to 197,239, 272,189.82 and 107,815

Step by Step Solution

1. Step 1: Write the proportion equation
   197,239 : 272,189.82 = 107,815 : x
2. Step 2: Convert to fraction form
   197,239/272,189.82 = 107,815/x
3. Step 3: Cross multiply
   197,239x = 272,189.82 × 107,815
4. Step 4: Simplify right side
   197,239x = 29,346,145,443.30
5. Step 5: Solve for x
   x = 29,346,145,443.30/197,239
6. Step 6: Final answer
   x = 148,784.70