Finding the Fourth Proportional to 83,436.76, 115,153.68 and 47,618.56

Step by Step Solution

1. Step 1: Write the proportion equation
   83,436.76 : 115,153.68 = 47,618.56 : x
2. Step 2: Convert to fraction form
   83,436.76/115,153.68 = 47,618.56/x
3. Step 3: Cross multiply
   83,436.76x = 115,153.68 × 47,618.56
4. Step 4: Simplify right side
   83,436.76x = 5,483,452,420.30
5. Step 5: Solve for x
   x = 5,483,452,420.30/83,436.76
6. Step 6: Final answer
   x = 65,719.86