Finding the Fourth Proportional to 83,621.28, 115,397.69 and 45,380.82

Step by Step Solution

1. Step 1: Write the proportion equation
   83,621.28 : 115,397.69 = 45,380.82 : x
2. Step 2: Convert to fraction form
   83,621.28/115,397.69 = 45,380.82/x
3. Step 3: Cross multiply
   83,621.28x = 115,397.69 × 45,380.82
4. Step 4: Simplify right side
   83,621.28x = 5,236,841,911.76
5. Step 5: Solve for x
   x = 5,236,841,911.76/83,621.28
6. Step 6: Final answer
   x = 62,625.71