Finding the Fourth Proportional to 86,729.30, 130,004.48 and 42,301.16

Step by Step Solution

1. Step 1: Write the proportion equation
   86,729.30 : 130,004.48 = 42,301.16 : x
2. Step 2: Convert to fraction form
   86,729.30/130,004.48 = 42,301.16/x
3. Step 3: Cross multiply
   86,729.30x = 130,004.48 × 42,301.16
4. Step 4: Simplify right side
   86,729.30x = 5,499,340,309.20
5. Step 5: Solve for x
   x = 5,499,340,309.20/86,729.30
6. Step 6: Final answer
   x = 63,408.10