Finding the Fourth Proportional to 37,432.80, 51,667.20 and 21,519

Step by Step Solution

1. Step 1: Write the proportion equation
   37,432.80 : 51,667.20 = 21,519 : x
2. Step 2: Convert to fraction form
   37,432.80/51,667.20 = 21,519/x
3. Step 3: Cross multiply
   37,432.80x = 51,667.20 × 21,519
4. Step 4: Simplify right side
   37,432.80x = 1,111,826,476.80
5. Step 5: Solve for x
   x = 1,111,826,476.80/37,432.80
6. Step 6: Final answer
   x = 29,701.93