Finding the Fourth Proportional to 83,643.16, 115,423.63 and 45,401.85

Step by Step Solution

1. Step 1: Write the proportion equation
   83,643.16 : 115,423.63 = 45,401.85 : x
2. Step 2: Convert to fraction form
   83,643.16/115,423.63 = 45,401.85/x
3. Step 3: Cross multiply
   83,643.16x = 115,423.63 × 45,401.85
4. Step 4: Simplify right side
   83,643.16x = 5,240,446,335.72
5. Step 5: Solve for x
   x = 5,240,446,335.72/83,643.16
6. Step 6: Final answer
   x = 62,652.42