Finding the Fourth Proportional to 28,323.63, 42,498.81 and 13,537.08

Step by Step Solution

1. Step 1: Write the proportion equation
   28,323.63 : 42,498.81 = 13,537.08 : x
2. Step 2: Convert to fraction form
   28,323.63/42,498.81 = 13,537.08/x
3. Step 3: Cross multiply
   28,323.63x = 42,498.81 × 13,537.08
4. Step 4: Simplify right side
   28,323.63x = 575,309,790.87
5. Step 5: Solve for x
   x = 575,309,790.87/28,323.63
6. Step 6: Final answer
   x = 20,312.01