Finding the Fourth Proportional to 86,749.98, 130,045.05 and 30,559.47

Step by Step Solution

1. Step 1: Write the proportion equation
   86,749.98 : 130,045.05 = 30,559.47 : x
2. Step 2: Convert to fraction form
   86,749.98/130,045.05 = 30,559.47/x
3. Step 3: Cross multiply
   86,749.98x = 130,045.05 × 30,559.47
4. Step 4: Simplify right side
   86,749.98x = 3,974,107,804.12
5. Step 5: Solve for x
   x = 3,974,107,804.12/86,749.98
6. Step 6: Final answer
   x = 45,811.05