Finding the Fourth Proportional to 32,638.86, 45,048.87 and 18,499.50

Step by Step Solution

1. Step 1: Write the proportion equation
   32,638.86 : 45,048.87 = 18,499.50 : x
2. Step 2: Convert to fraction form
   32,638.86/45,048.87 = 18,499.50/x
3. Step 3: Cross multiply
   32,638.86x = 45,048.87 × 18,499.50
4. Step 4: Simplify right side
   32,638.86x = 833,381,570.57
5. Step 5: Solve for x
   x = 833,381,570.57/32,638.86
6. Step 6: Final answer
   x = 25,533.42