Finding the Fourth Proportional to 112,196.88, 168,416.64 and 99,796.32

Step by Step Solution

1. Step 1: Write the proportion equation
   112,196.88 : 168,416.64 = 99,796.32 : x
2. Step 2: Convert to fraction form
   112,196.88/168,416.64 = 99,796.32/x
3. Step 3: Cross multiply
   112,196.88x = 168,416.64 × 99,796.32
4. Step 4: Simplify right side
   112,196.88x = 16,807,360,898.76
5. Step 5: Solve for x
   x = 16,807,360,898.76/112,196.88
6. Step 6: Final answer
   x = 149,802.39