Finding the Fourth Proportional to 112,111.53, 154,553.16 and 88,196.68

Step by Step Solution

1. Step 1: Write the proportion equation
   112,111.53 : 154,553.16 = 88,196.68 : x
2. Step 2: Convert to fraction form
   112,111.53/154,553.16 = 88,196.68/x
3. Step 3: Cross multiply
   112,111.53x = 154,553.16 × 88,196.68
4. Step 4: Simplify right side
   112,111.53x = 13,631,075,595.51
5. Step 5: Solve for x
   x = 13,631,075,595.51/112,111.53
6. Step 6: Final answer
   x = 121,584.96