Finding the Fourth Proportional to 60,780, 83,886.12 and 35,629.50

Step by Step Solution

1. Step 1: Write the proportion equation
   60,780 : 83,886.12 = 35,629.50 : x
2. Step 2: Convert to fraction form
   60,780/83,886.12 = 35,629.50/x
3. Step 3: Cross multiply
   60,780x = 83,886.12 × 35,629.50
4. Step 4: Simplify right side
   60,780x = 2,988,820,512.54
5. Step 5: Solve for x
   x = 2,988,820,512.54/60,780
6. Step 6: Final answer
   x = 49,174.41