Finding the Fourth Proportional to 163,017.80, 224,964.56 and 91,397.96

Step by Step Solution

1. Step 1: Write the proportion equation
   163,017.80 : 224,964.56 = 91,397.96 : x
2. Step 2: Convert to fraction form
   163,017.80/224,964.56 = 91,397.96/x
3. Step 3: Cross multiply
   163,017.80x = 224,964.56 × 91,397.96
4. Step 4: Simplify right side
   163,017.80x = 20,561,301,856.30
5. Step 5: Solve for x
   x = 20,561,301,856.30/163,017.80
6. Step 6: Final answer
   x = 126,129.18