Finding the Fourth Proportional to 83,498.56, 115,235.28 and 45,780

Step by Step Solution

1. Step 1: Write the proportion equation
   83,498.56 : 115,235.28 = 45,780 : x
2. Step 2: Convert to fraction form
   83,498.56/115,235.28 = 45,780/x
3. Step 3: Cross multiply
   83,498.56x = 115,235.28 × 45,780
4. Step 4: Simplify right side
   83,498.56x = 5,275,471,118.40
5. Step 5: Solve for x
   x = 5,275,471,118.40/83,498.56
6. Step 6: Final answer
   x = 63,180.38