Finding the Fourth Proportional to 139,856.46, 209,609.52 and 110,157

Step by Step Solution

1. Step 1: Write the proportion equation
   139,856.46 : 209,609.52 = 110,157 : x
2. Step 2: Convert to fraction form
   139,856.46/209,609.52 = 110,157/x
3. Step 3: Cross multiply
   139,856.46x = 209,609.52 × 110,157
4. Step 4: Simplify right side
   139,856.46x = 23,089,955,894.64
5. Step 5: Solve for x
   x = 23,089,955,894.64/139,856.46
6. Step 6: Final answer
   x = 165,097.53