Finding the Fourth Proportional to 46,389.50, 69,588.82 and 13,109.82

Step by Step Solution

1. Step 1: Write the proportion equation
   46,389.50 : 69,588.82 = 13,109.82 : x
2. Step 2: Convert to fraction form
   46,389.50/69,588.82 = 13,109.82/x
3. Step 3: Cross multiply
   46,389.50x = 69,588.82 × 13,109.82
4. Step 4: Simplify right side
   46,389.50x = 912,296,904.21
5. Step 5: Solve for x
   x = 912,296,904.21/46,389.50
6. Step 6: Final answer
   x = 19,666.02