Finding the Fourth Proportional to 112,895.82, 169,309.17 and 78,059.34

Step by Step Solution

1. Step 1: Write the proportion equation
   112,895.82 : 169,309.17 = 78,059.34 : x
2. Step 2: Convert to fraction form
   112,895.82/169,309.17 = 78,059.34/x
3. Step 3: Cross multiply
   112,895.82x = 169,309.17 × 78,059.34
4. Step 4: Simplify right side
   112,895.82x = 13,216,162,066.15
5. Step 5: Solve for x
   x = 13,216,162,066.15/112,895.82
6. Step 6: Final answer
   x = 117,065.11