Finding the Fourth Proportional to 162,428.31, 243,568.67 and 50,087.61

Step by Step Solution

1. Step 1: Write the proportion equation
   162,428.31 : 243,568.67 = 50,087.61 : x
2. Step 2: Convert to fraction form
   162,428.31/243,568.67 = 50,087.61/x
3. Step 3: Cross multiply
   162,428.31x = 243,568.67 × 50,087.61
4. Step 4: Simplify right side
   162,428.31x = 12,199,772,300.74
5. Step 5: Solve for x
   x = 12,199,772,300.74/162,428.31
6. Step 6: Final answer
   x = 75,108.66