Finding the Fourth Proportional to 213,810.83, 320,709.63 and 101,571.83

Step by Step Solution

1. Step 1: Write the proportion equation
   213,810.83 : 320,709.63 = 101,571.83 : x
2. Step 2: Convert to fraction form
   213,810.83/320,709.63 = 101,571.83/x
3. Step 3: Cross multiply
   213,810.83x = 320,709.63 × 101,571.83
4. Step 4: Simplify right side
   213,810.83x = 32,575,064,017.72
5. Step 5: Solve for x
   x = 32,575,064,017.72/213,810.83
6. Step 6: Final answer
   x = 152,354.60