Finding the Fourth Proportional to 83,688.33, 115,497.98 and 47,871.34

Step by Step Solution

1. Step 1: Write the proportion equation
   83,688.33 : 115,497.98 = 47,871.34 : x
2. Step 2: Convert to fraction form
   83,688.33/115,497.98 = 47,871.34/x
3. Step 3: Cross multiply
   83,688.33x = 115,497.98 × 47,871.34
4. Step 4: Simplify right side
   83,688.33x = 5,529,043,069.89
5. Step 5: Solve for x
   x = 5,529,043,069.89/83,688.33
6. Step 6: Final answer
   x = 66,067.07