Finding the Fourth Proportional to 112,577.69, 169,059.72 and 99,955.97

Step by Step Solution

1. Step 1: Write the proportion equation
   112,577.69 : 169,059.72 = 99,955.97 : x
2. Step 2: Convert to fraction form
   112,577.69/169,059.72 = 99,955.97/x
3. Step 3: Cross multiply
   112,577.69x = 169,059.72 × 99,955.97
4. Step 4: Simplify right side
   112,577.69x = 16,898,526,955.45
5. Step 5: Solve for x
   x = 16,898,526,955.45/112,577.69
6. Step 6: Final answer
   x = 150,105.48