Finding the Fourth Proportional to 214,128.06, 321,167.25 and 56,368.83

Step by Step Solution

1. Step 1: Write the proportion equation
   214,128.06 : 321,167.25 = 56,368.83 : x
2. Step 2: Convert to fraction form
   214,128.06/321,167.25 = 56,368.83/x
3. Step 3: Cross multiply
   214,128.06x = 321,167.25 × 56,368.83
4. Step 4: Simplify right side
   214,128.06x = 18,103,822,116.82
5. Step 5: Solve for x
   x = 18,103,822,116.82/214,128.06
6. Step 6: Final answer
   x = 84,546.71