Finding the Fourth Proportional to 108,884.31, 150,256.46 and 61,139.67

Step by Step Solution

1. Step 1: Write the proportion equation
   108,884.31 : 150,256.46 = 61,139.67 : x
2. Step 2: Convert to fraction form
   108,884.31/150,256.46 = 61,139.67/x
3. Step 3: Cross multiply
   108,884.31x = 150,256.46 × 61,139.67
4. Step 4: Simplify right side
   108,884.31x = 9,186,630,074.07
5. Step 5: Solve for x
   x = 9,186,630,074.07/108,884.31
6. Step 6: Final answer
   x = 84,370.56