Finding the Fourth Proportional to 162,007.05, 242,978.18 and 77,767.05

Step by Step Solution

1. Step 1: Write the proportion equation
   162,007.05 : 242,978.18 = 77,767.05 : x
2. Step 2: Convert to fraction form
   162,007.05/242,978.18 = 77,767.05/x
3. Step 3: Cross multiply
   162,007.05x = 242,978.18 × 77,767.05
4. Step 4: Simplify right side
   162,007.05x = 18,895,695,884.13
5. Step 5: Solve for x
   x = 18,895,695,884.13/162,007.05
6. Step 6: Final answer
   x = 116,635.02