Finding the Fourth Proportional to 106,308.15, 146,757.74 and 72,492.27

Step by Step Solution

1. Step 1: Write the proportion equation
   106,308.15 : 146,757.74 = 72,492.27 : x
2. Step 2: Convert to fraction form
   106,308.15/146,757.74 = 72,492.27/x
3. Step 3: Cross multiply
   106,308.15x = 146,757.74 × 72,492.27
4. Step 4: Simplify right side
   106,308.15x = 10,638,801,350.21
5. Step 5: Solve for x
   x = 10,638,801,350.21/106,308.15
6. Step 6: Final answer
   x = 100,075.12