Finding the Fourth Proportional to 162,153.23, 243,018.87 and 65,978.37

Step by Step Solution

1. Step 1: Write the proportion equation
   162,153.23 : 243,018.87 = 65,978.37 : x
2. Step 2: Convert to fraction form
   162,153.23/243,018.87 = 65,978.37/x
3. Step 3: Cross multiply
   162,153.23x = 243,018.87 × 65,978.37
4. Step 4: Simplify right side
   162,153.23x = 16,033,987,954.17
5. Step 5: Solve for x
   x = 16,033,987,954.17/162,153.23
6. Step 6: Final answer
   x = 98,881.70