Finding the Fourth Proportional to 132,870.10, 198,819.15 and 97,878.10

Step by Step Solution

1. Step 1: Write the proportion equation
   132,870.10 : 198,819.15 = 97,878.10 : x
2. Step 2: Convert to fraction form
   132,870.10/198,819.15 = 97,878.10/x
3. Step 3: Cross multiply
   132,870.10x = 198,819.15 × 97,878.10
4. Step 4: Simplify right side
   132,870.10x = 19,460,040,645.62
5. Step 5: Solve for x
   x = 19,460,040,645.62/132,870.10
6. Step 6: Final answer
   x = 146,459.14