Finding the Fourth Proportional to 251,411.14, 377,017.89 and 91,449.10

Step by Step Solution

1. Step 1: Write the proportion equation
   251,411.14 : 377,017.89 = 91,449.10 : x
2. Step 2: Convert to fraction form
   251,411.14/377,017.89 = 91,449.10/x
3. Step 3: Cross multiply
   251,411.14x = 377,017.89 × 91,449.10
4. Step 4: Simplify right side
   251,411.14x = 34,477,946,724.40
5. Step 5: Solve for x
   x = 34,477,946,724.40/251,411.14
6. Step 6: Final answer
   x = 137,137.70