Finding the Fourth Proportional to 112,508,162.69, 169,605,514.19 and 105,008,617.71

Step by Step Solution

1. Step 1: Write the proportion equation
   112,508,162.69 : 169,605,514.19 = 105,008,617.71 : x
2. Step 2: Convert to fraction form
   112,508,162.69/169,605,514.19 = 105,008,617.71/x
3. Step 3: Cross multiply
   112,508,162.69x = 169,605,514.19 × 105,008,617.71
4. Step 4: Simplify right side
   112,508,162.69x = 17,810,040,601,348,210
5. Step 5: Solve for x
   x = 17,810,040,601,348,210/112,508,162.69
6. Step 6: Final answer
   x = 158,299,986.21