Finding the Fourth Proportional to 132,018.40, 198,056.76 and 65,494.72

Step by Step Solution

1. Step 1: Write the proportion equation
   132,018.40 : 198,056.76 = 65,494.72 : x
2. Step 2: Convert to fraction form
   132,018.40/198,056.76 = 65,494.72/x
3. Step 3: Cross multiply
   132,018.40x = 198,056.76 × 65,494.72
4. Step 4: Simplify right side
   132,018.40x = 12,971,672,040.31
5. Step 5: Solve for x
   x = 12,971,672,040.31/132,018.40
6. Step 6: Final answer
   x = 98,256.55