Finding the Fourth Proportional to 112,388.01, 154,779.71 and 109,938.57

Step by Step Solution

1. Step 1: Write the proportion equation
   112,388.01 : 154,779.71 = 109,938.57 : x
2. Step 2: Convert to fraction form
   112,388.01/154,779.71 = 109,938.57/x
3. Step 3: Cross multiply
   112,388.01x = 154,779.71 × 109,938.57
4. Step 4: Simplify right side
   112,388.01x = 17,016,259,470.70
5. Step 5: Solve for x
   x = 17,016,259,470.70/112,388.01
6. Step 6: Final answer
   x = 151,406.36