Finding the Fourth Proportional to 32,670.71, 45,078.71 and 21,356.86

Step by Step Solution

1. Step 1: Write the proportion equation
   32,670.71 : 45,078.71 = 21,356.86 : x
2. Step 2: Convert to fraction form
   32,670.71/45,078.71 = 21,356.86/x
3. Step 3: Cross multiply
   32,670.71x = 45,078.71 × 21,356.86
4. Step 4: Simplify right side
   32,670.71x = 962,739,698.45
5. Step 5: Solve for x
   x = 962,739,698.45/32,670.71
6. Step 6: Final answer
   x = 29,467.98