Finding the Fourth Proportional to 112,900.71, 169,018.88 and 75,367.69

Step by Step Solution

1. Step 1: Write the proportion equation
   112,900.71 : 169,018.88 = 75,367.69 : x
2. Step 2: Convert to fraction form
   112,900.71/169,018.88 = 75,367.69/x
3. Step 3: Cross multiply
   112,900.71x = 169,018.88 × 75,367.69
4. Step 4: Simplify right side
   112,900.71x = 12,738,562,551.99
5. Step 5: Solve for x
   x = 12,738,562,551.99/112,900.71
6. Step 6: Final answer
   x = 112,829.78