Finding the Fourth Proportional to 83,506.10, 115,225.88 and 47,688.48

Step by Step Solution

1. Step 1: Write the proportion equation
   83,506.10 : 115,225.88 = 47,688.48 : x
2. Step 2: Convert to fraction form
   83,506.10/115,225.88 = 47,688.48/x
3. Step 3: Cross multiply
   83,506.10x = 115,225.88 × 47,688.48
4. Step 4: Simplify right side
   83,506.10x = 5,494,946,835.42
5. Step 5: Solve for x
   x = 5,494,946,835.42/83,506.10
6. Step 6: Final answer
   x = 65,802.94