Finding the Fourth Proportional to 265,577.85, 398,428.94 and 105,662.84

Step by Step Solution

1. Step 1: Write the proportion equation
   265,577.85 : 398,428.94 = 105,662.84 : x
2. Step 2: Convert to fraction form
   265,577.85/398,428.94 = 105,662.84/x
3. Step 3: Cross multiply
   265,577.85x = 398,428.94 × 105,662.84
4. Step 4: Simplify right side
   265,577.85x = 42,099,133,338.59
5. Step 5: Solve for x
   x = 42,099,133,338.59/265,577.85
6. Step 6: Final answer
   x = 158,518.99