Finding the Fourth Proportional to 112,766.40, 168,663.60 and 101,005.20

Step by Step Solution

1. Step 1: Write the proportion equation
   112,766.40 : 168,663.60 = 101,005.20 : x
2. Step 2: Convert to fraction form
   112,766.40/168,663.60 = 101,005.20/x
3. Step 3: Cross multiply
   112,766.40x = 168,663.60 × 101,005.20
4. Step 4: Simplify right side
   112,766.40x = 17,035,900,650.72
5. Step 5: Solve for x
   x = 17,035,900,650.72/112,766.40
6. Step 6: Final answer
   x = 151,072.49