Finding the Fourth Proportional to 207,196.12, 310,592.56 and 132,081.88

Step by Step Solution

1. Step 1: Write the proportion equation
   207,196.12 : 310,592.56 = 132,081.88 : x
2. Step 2: Convert to fraction form
   207,196.12/310,592.56 = 132,081.88/x
3. Step 3: Cross multiply
   207,196.12x = 310,592.56 × 132,081.88
4. Step 4: Simplify right side
   207,196.12x = 41,023,649,238.81
5. Step 5: Solve for x
   x = 41,023,649,238.81/207,196.12
6. Step 6: Final answer
   x = 197,994.29