Finding the Fourth Proportional to 83,633.88, 115,415.61 and 45,393.78

Step by Step Solution

1. Step 1: Write the proportion equation
   83,633.88 : 115,415.61 = 45,393.78 : x
2. Step 2: Convert to fraction form
   83,633.88/115,415.61 = 45,393.78/x
3. Step 3: Cross multiply
   83,633.88x = 115,415.61 × 45,393.78
4. Step 4: Simplify right side
   83,633.88x = 5,239,150,808.91
5. Step 5: Solve for x
   x = 5,239,150,808.91/83,633.88
6. Step 6: Final answer
   x = 62,643.88