Finding the Fourth Proportional to 111,938.42, 154,485.90 and 83,594.90

Step by Step Solution

1. Step 1: Write the proportion equation
   111,938.42 : 154,485.90 = 83,594.90 : x
2. Step 2: Convert to fraction form
   111,938.42/154,485.90 = 83,594.90/x
3. Step 3: Cross multiply
   111,938.42x = 154,485.90 × 83,594.90
4. Step 4: Simplify right side
   111,938.42x = 12,914,232,589.48
5. Step 5: Solve for x
   x = 12,914,232,589.48/111,938.42
6. Step 6: Final answer
   x = 115,369.09