Finding the Fourth Proportional to 214,086.31, 321,051.94 and 71,889.05

Step by Step Solution

1. Step 1: Write the proportion equation
   214,086.31 : 321,051.94 = 71,889.05 : x
2. Step 2: Convert to fraction form
   214,086.31/321,051.94 = 71,889.05/x
3. Step 3: Cross multiply
   214,086.31x = 321,051.94 × 71,889.05
4. Step 4: Simplify right side
   214,086.31x = 23,080,118,967.26
5. Step 5: Solve for x
   x = 23,080,118,967.26/214,086.31
6. Step 6: Final answer
   x = 107,807.54