Finding the Fourth Proportional to 83,516.16, 115,185.34 and 73,423.20

Step by Step Solution

1. Step 1: Write the proportion equation
   83,516.16 : 115,185.34 = 73,423.20 : x
2. Step 2: Convert to fraction form
   83,516.16/115,185.34 = 73,423.20/x
3. Step 3: Cross multiply
   83,516.16x = 115,185.34 × 73,423.20
4. Step 4: Simplify right side
   83,516.16x = 8,457,276,255.89
5. Step 5: Solve for x
   x = 8,457,276,255.89/83,516.16
6. Step 6: Final answer
   x = 101,265.15