Finding the Fourth Proportional to 120,973.50, 166,943.43 and 67,981.50

Step by Step Solution

1. Step 1: Write the proportion equation
   120,973.50 : 166,943.43 = 67,981.50 : x
2. Step 2: Convert to fraction form
   120,973.50/166,943.43 = 67,981.50/x
3. Step 3: Cross multiply
   120,973.50x = 166,943.43 × 67,981.50
4. Step 4: Simplify right side
   120,973.50x = 11,349,064,786.55
5. Step 5: Solve for x
   x = 11,349,064,786.55/120,973.50
6. Step 6: Final answer
   x = 93,814.47