Finding the Fourth Proportional to 190,111.76, 262,354.46 and 118,491.72

Step by Step Solution

1. Step 1: Write the proportion equation
   190,111.76 : 262,354.46 = 118,491.72 : x
2. Step 2: Convert to fraction form
   190,111.76/262,354.46 = 118,491.72/x
3. Step 3: Cross multiply
   190,111.76x = 262,354.46 × 118,491.72
4. Step 4: Simplify right side
   190,111.76x = 31,086,831,215.07
5. Step 5: Solve for x
   x = 31,086,831,215.07/190,111.76
6. Step 6: Final answer
   x = 163,518.72