Finding the Fourth Proportional to 21,354.08, 32,030.72 and 12,530.76

Step by Step Solution

1. Step 1: Write the proportion equation
   21,354.08 : 32,030.72 = 12,530.76 : x
2. Step 2: Convert to fraction form
   21,354.08/32,030.72 = 12,530.76/x
3. Step 3: Cross multiply
   21,354.08x = 32,030.72 × 12,530.76
4. Step 4: Simplify right side
   21,354.08x = 401,369,264.95
5. Step 5: Solve for x
   x = 401,369,264.95/21,354.08
6. Step 6: Final answer
   x = 18,795.91