Finding the Fourth Proportional to 196,439.85, 271,088.91 and 111,557.52

Step by Step Solution

1. Step 1: Write the proportion equation
   196,439.85 : 271,088.91 = 111,557.52 : x
2. Step 2: Convert to fraction form
   196,439.85/271,088.91 = 111,557.52/x
3. Step 3: Cross multiply
   196,439.85x = 271,088.91 × 111,557.52
4. Step 4: Simplify right side
   196,439.85x = 30,242,006,499.10
5. Step 5: Solve for x
   x = 30,242,006,499.10/196,439.85
6. Step 6: Final answer
   x = 153,950.47