Finding the Fourth Proportional to 189,061.25, 260,917.16 and 104,178.31

Step by Step Solution

1. Step 1: Write the proportion equation
   189,061.25 : 260,917.16 = 104,178.31 : x
2. Step 2: Convert to fraction form
   189,061.25/260,917.16 = 104,178.31/x
3. Step 3: Cross multiply
   189,061.25x = 260,917.16 × 104,178.31
4. Step 4: Simplify right side
   189,061.25x = 27,181,907,605.62
5. Step 5: Solve for x
   x = 27,181,907,605.62/189,061.25
6. Step 6: Final answer
   x = 143,773.03