Finding the Fourth Proportional to 42,477.84, 63,698.04 and 21,404.88

Step by Step Solution

1. Step 1: Write the proportion equation
   42,477.84 : 63,698.04 = 21,404.88 : x
2. Step 2: Convert to fraction form
   42,477.84/63,698.04 = 21,404.88/x
3. Step 3: Cross multiply
   42,477.84x = 63,698.04 × 21,404.88
4. Step 4: Simplify right side
   42,477.84x = 1,363,448,902.44
5. Step 5: Solve for x
   x = 1,363,448,902.44/42,477.84
6. Step 6: Final answer
   x = 32,097.89