Finding the Fourth Proportional to 83,492.42, 115,227.54 and 47,687.78

Step by Step Solution

1. Step 1: Write the proportion equation
   83,492.42 : 115,227.54 = 47,687.78 : x
2. Step 2: Convert to fraction form
   83,492.42/115,227.54 = 47,687.78/x
3. Step 3: Cross multiply
   83,492.42x = 115,227.54 × 47,687.78
4. Step 4: Simplify right side
   83,492.42x = 5,494,945,577.46
5. Step 5: Solve for x
   x = 5,494,945,577.46/83,492.42
6. Step 6: Final answer
   x = 65,813.71