Finding the Fourth Proportional to 86,865.30, 130,274.52 and 30,697.98

Step by Step Solution

1. Step 1: Write the proportion equation
   86,865.30 : 130,274.52 = 30,697.98 : x
2. Step 2: Convert to fraction form
   86,865.30/130,274.52 = 30,697.98/x
3. Step 3: Cross multiply
   86,865.30x = 130,274.52 × 30,697.98
4. Step 4: Simplify right side
   86,865.30x = 3,999,164,609.47
5. Step 5: Solve for x
   x = 3,999,164,609.47/86,865.30
6. Step 6: Final answer
   x = 46,038.69