Finding the Fourth Proportional to 67,492.72, 101,259.60 and 31,981.24

Step by Step Solution

1. Step 1: Write the proportion equation
   67,492.72 : 101,259.60 = 31,981.24 : x
2. Step 2: Convert to fraction form
   67,492.72/101,259.60 = 31,981.24/x
3. Step 3: Cross multiply
   67,492.72x = 101,259.60 × 31,981.24
4. Step 4: Simplify right side
   67,492.72x = 3,238,407,569.90
5. Step 5: Solve for x
   x = 3,238,407,569.90/67,492.72
6. Step 6: Final answer
   x = 47,981.58