Finding the Fourth Proportional to 51,071.86, 76,590.78 and 21,484.18

Step by Step Solution

1. Step 1: Write the proportion equation
   51,071.86 : 76,590.78 = 21,484.18 : x
2. Step 2: Convert to fraction form
   51,071.86/76,590.78 = 21,484.18/x
3. Step 3: Cross multiply
   51,071.86x = 76,590.78 × 21,484.18
4. Step 4: Simplify right side
   51,071.86x = 1,645,490,103.86
5. Step 5: Solve for x
   x = 1,645,490,103.86/51,071.86
6. Step 6: Final answer
   x = 32,219.11