Finding the Fourth Proportional to 109,623.30, 164,424.18 and 74,311.46

Step by Step Solution

1. Step 1: Write the proportion equation
   109,623.30 : 164,424.18 = 74,311.46 : x
2. Step 2: Convert to fraction form
   109,623.30/164,424.18 = 74,311.46/x
3. Step 3: Cross multiply
   109,623.30x = 164,424.18 × 74,311.46
4. Step 4: Simplify right side
   109,623.30x = 12,218,600,875.10
5. Step 5: Solve for x
   x = 12,218,600,875.10/109,623.30
6. Step 6: Final answer
   x = 111,459.89