Finding the Fourth Proportional to 109,463.02, 164,196.15 and 72,261.34

Step by Step Solution

1. Step 1: Write the proportion equation
   109,463.02 : 164,196.15 = 72,261.34 : x
2. Step 2: Convert to fraction form
   109,463.02/164,196.15 = 72,261.34/x
3. Step 3: Cross multiply
   109,463.02x = 164,196.15 × 72,261.34
4. Step 4: Simplify right side
   109,463.02x = 11,865,033,821.84
5. Step 5: Solve for x
   x = 11,865,033,821.84/109,463.02
6. Step 6: Final answer
   x = 108,393.08