Finding the Fourth Proportional to 42,492.76, 63,767.34 and 28,467.88

Step by Step Solution

1. Step 1: Write the proportion equation
   42,492.76 : 63,767.34 = 28,467.88 : x
2. Step 2: Convert to fraction form
   42,492.76/63,767.34 = 28,467.88/x
3. Step 3: Cross multiply
   42,492.76x = 63,767.34 × 28,467.88
4. Step 4: Simplify right side
   42,492.76x = 1,815,320,983.04
5. Step 5: Solve for x
   x = 1,815,320,983.04/42,492.76
6. Step 6: Final answer
   x = 42,720.71