Finding the Fourth Proportional to 75,091.81, 103,638.32 and 42,826.49

Step by Step Solution

1. Step 1: Write the proportion equation
   75,091.81 : 103,638.32 = 42,826.49 : x
2. Step 2: Convert to fraction form
   75,091.81/103,638.32 = 42,826.49/x
3. Step 3: Cross multiply
   75,091.81x = 103,638.32 × 42,826.49
4. Step 4: Simplify right side
   75,091.81x = 4,438,465,475.10
5. Step 5: Solve for x
   x = 4,438,465,475.10/75,091.81
6. Step 6: Final answer
   x = 59,107.18