Finding the Fourth Proportional to 162,144.18, 243,051.03 and 91,875.06

Step by Step Solution

1. Step 1: Write the proportion equation
   162,144.18 : 243,051.03 = 91,875.06 : x
2. Step 2: Convert to fraction form
   162,144.18/243,051.03 = 91,875.06/x
3. Step 3: Cross multiply
   162,144.18x = 243,051.03 × 91,875.06
4. Step 4: Simplify right side
   162,144.18x = 22,330,327,964.31
5. Step 5: Solve for x
   x = 22,330,327,964.31/162,144.18
6. Step 6: Final answer
   x = 137,718.96