Finding the Fourth Proportional to 234,141.05, 351,069.32 and 91,815.78

Step by Step Solution

1. Step 1: Write the proportion equation
   234,141.05 : 351,069.32 = 91,815.78 : x
2. Step 2: Convert to fraction form
   234,141.05/351,069.32 = 91,815.78/x
3. Step 3: Cross multiply
   234,141.05x = 351,069.32 × 91,815.78
4. Step 4: Simplify right side
   234,141.05x = 32,233,702,990.79
5. Step 5: Solve for x
   x = 32,233,702,990.79/234,141.05
6. Step 6: Final answer
   x = 137,667.89