Finding the Fourth Proportional to 131,798.84, 197,615.20 and 111,815.31

Step by Step Solution

1. Step 1: Write the proportion equation
   131,798.84 : 197,615.20 = 111,815.31 : x
2. Step 2: Convert to fraction form
   131,798.84/197,615.20 = 111,815.31/x
3. Step 3: Cross multiply
   131,798.84x = 197,615.20 × 111,815.31
4. Step 4: Simplify right side
   131,798.84x = 22,096,404,848.71
5. Step 5: Solve for x
   x = 22,096,404,848.71/131,798.84
6. Step 6: Final answer
   x = 167,652.50