Finding the Fourth Proportional to 162,256.30, 243,133.59 and 126,633.16

Step by Step Solution

1. Step 1: Write the proportion equation
   162,256.30 : 243,133.59 = 126,633.16 : x
2. Step 2: Convert to fraction form
   162,256.30/243,133.59 = 126,633.16/x
3. Step 3: Cross multiply
   162,256.30x = 243,133.59 × 126,633.16
4. Step 4: Simplify right side
   162,256.30x = 30,788,774,803.84
5. Step 5: Solve for x
   x = 30,788,774,803.84/162,256.30
6. Step 6: Final answer
   x = 189,753.96