Finding the Fourth Proportional to 112,171.06, 168,090.37 and 45,530.10

Step by Step Solution

1. Step 1: Write the proportion equation
   112,171.06 : 168,090.37 = 45,530.10 : x
2. Step 2: Convert to fraction form
   112,171.06/168,090.37 = 45,530.10/x
3. Step 3: Cross multiply
   112,171.06x = 168,090.37 × 45,530.10
4. Step 4: Simplify right side
   112,171.06x = 7,653,171,355.14
5. Step 5: Solve for x
   x = 7,653,171,355.14/112,171.06
6. Step 6: Final answer
   x = 68,227.68