Finding the Fourth Proportional to 46,315.68, 69,462.54 and 13,038.72

Step by Step Solution

1. Step 1: Write the proportion equation
   46,315.68 : 69,462.54 = 13,038.72 : x
2. Step 2: Convert to fraction form
   46,315.68/69,462.54 = 13,038.72/x
3. Step 3: Cross multiply
   46,315.68x = 69,462.54 × 13,038.72
4. Step 4: Simplify right side
   46,315.68x = 905,702,609.55
5. Step 5: Solve for x
   x = 905,702,609.55/46,315.68
6. Step 6: Final answer
   x = 19,554.99