Finding the Fourth Proportional to 112,883.32, 169,290.42 and 78,046.84

Step by Step Solution

1. Step 1: Write the proportion equation
   112,883.32 : 169,290.42 = 78,046.84 : x
2. Step 2: Convert to fraction form
   112,883.32/169,290.42 = 78,046.84/x
3. Step 3: Cross multiply
   112,883.32x = 169,290.42 × 78,046.84
4. Step 4: Simplify right side
   112,883.32x = 13,212,582,323.27
5. Step 5: Solve for x
   x = 13,212,582,323.27/112,883.32
6. Step 6: Final answer
   x = 117,046.37