Finding the Fourth Proportional to 215,191, 322,838.34 and 67,447

Step by Step Solution

1. Step 1: Write the proportion equation
   215,191 : 322,838.34 = 67,447 : x
2. Step 2: Convert to fraction form
   215,191/322,838.34 = 67,447/x
3. Step 3: Cross multiply
   215,191x = 322,838.34 × 67,447
4. Step 4: Simplify right side
   215,191x = 21,774,477,517.98
5. Step 5: Solve for x
   x = 21,774,477,517.98/215,191
6. Step 6: Final answer
   x = 101,186.75