Finding the Fourth Proportional to 86,943.88, 130,391.72 and 30,776.59

Step by Step Solution

1. Step 1: Write the proportion equation
   86,943.88 : 130,391.72 = 30,776.59 : x
2. Step 2: Convert to fraction form
   86,943.88/130,391.72 = 30,776.59/x
3. Step 3: Cross multiply
   86,943.88x = 130,391.72 × 30,776.59
4. Step 4: Simplify right side
   86,943.88x = 4,013,012,630.35
5. Step 5: Solve for x
   x = 4,013,012,630.35/86,943.88
6. Step 6: Final answer
   x = 46,156.36