Finding the Fourth Proportional to 83,436.30, 115,150.34 and 47,631.71

Step by Step Solution

1. Step 1: Write the proportion equation
   83,436.30 : 115,150.34 = 47,631.71 : x
2. Step 2: Convert to fraction form
   83,436.30/115,150.34 = 47,631.71/x
3. Step 3: Cross multiply
   83,436.30x = 115,150.34 × 47,631.71
4. Step 4: Simplify right side
   83,436.30x = 5,484,808,008.24
5. Step 5: Solve for x
   x = 5,484,808,008.24/83,436.30
6. Step 6: Final answer
   x = 65,736.47