Finding the Fourth Proportional to 106,322.09, 159,483.50 and 72,940.98

Step by Step Solution

1. Step 1: Write the proportion equation
   106,322.09 : 159,483.50 = 72,940.98 : x
2. Step 2: Convert to fraction form
   106,322.09/159,483.50 = 72,940.98/x
3. Step 3: Cross multiply
   106,322.09x = 159,483.50 × 72,940.98
4. Step 4: Simplify right side
   106,322.09x = 11,632,882,783.83
5. Step 5: Solve for x
   x = 11,632,882,783.83/106,322.09
6. Step 6: Final answer
   x = 109,411.72