Finding the Fourth Proportional to 139,061.56, 206,803.34 and 134,632.92

Step by Step Solution

1. Step 1: Write the proportion equation
   139,061.56 : 206,803.34 = 134,632.92 : x
2. Step 2: Convert to fraction form
   139,061.56/206,803.34 = 134,632.92/x
3. Step 3: Cross multiply
   139,061.56x = 206,803.34 × 134,632.92
4. Step 4: Simplify right side
   139,061.56x = 27,842,537,529.95
5. Step 5: Solve for x
   x = 27,842,537,529.95/139,061.56
6. Step 6: Final answer
   x = 200,217.35