Finding the Fourth Proportional to 42,044.64, 63,106.32 and 21,282.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,044.64 : 63,106.32 = 21,282.72 : x
2. Step 2: Convert to fraction form
   42,044.64/63,106.32 = 21,282.72/x
3. Step 3: Cross multiply
   42,044.64x = 63,106.32 × 21,282.72
4. Step 4: Simplify right side
   42,044.64x = 1,343,074,138.79
5. Step 5: Solve for x
   x = 1,343,074,138.79/42,044.64
6. Step 6: Final answer
   x = 31,944.00