Finding the Fourth Proportional to 112,360.71, 154,857.27 and 85,071.42

Step by Step Solution

1. Step 1: Write the proportion equation
   112,360.71 : 154,857.27 = 85,071.42 : x
2. Step 2: Convert to fraction form
   112,360.71/154,857.27 = 85,071.42/x
3. Step 3: Cross multiply
   112,360.71x = 154,857.27 × 85,071.42
4. Step 4: Simplify right side
   112,360.71x = 13,173,928,175.24
5. Step 5: Solve for x
   x = 13,173,928,175.24/112,360.71
6. Step 6: Final answer
   x = 117,246.75