Finding the Fourth Proportional to 142,846.21, 214,271.16 and 98,461.06

Step by Step Solution

1. Step 1: Write the proportion equation
   142,846.21 : 214,271.16 = 98,461.06 : x
2. Step 2: Convert to fraction form
   142,846.21/214,271.16 = 98,461.06/x
3. Step 3: Cross multiply
   142,846.21x = 214,271.16 × 98,461.06
4. Step 4: Simplify right side
   142,846.21x = 21,097,365,541.03
5. Step 5: Solve for x
   x = 21,097,365,541.03/142,846.21
6. Step 6: Final answer
   x = 147,692.86