Finding the Fourth Proportional to 112,899.71, 169,017.38 and 75,366.69

Step by Step Solution

1. Step 1: Write the proportion equation
   112,899.71 : 169,017.38 = 75,366.69 : x
2. Step 2: Convert to fraction form
   112,899.71/169,017.38 = 75,366.69/x
3. Step 3: Cross multiply
   112,899.71x = 169,017.38 × 75,366.69
4. Step 4: Simplify right side
   112,899.71x = 12,738,280,483.07
5. Step 5: Solve for x
   x = 12,738,280,483.07/112,899.71
6. Step 6: Final answer
   x = 112,828.28