Finding the Fourth Proportional to 111,030.30, 166,217.40 and 97,908.30

Step by Step Solution

1. Step 1: Write the proportion equation
   111,030.30 : 166,217.40 = 97,908.30 : x
2. Step 2: Convert to fraction form
   111,030.30/166,217.40 = 97,908.30/x
3. Step 3: Cross multiply
   111,030.30x = 166,217.40 × 97,908.30
4. Step 4: Simplify right side
   111,030.30x = 16,274,063,064.42
5. Step 5: Solve for x
   x = 16,274,063,064.42/111,030.30
6. Step 6: Final answer
   x = 146,573.17