Finding the Fourth Proportional to 139,064.43, 191,811 and 134,434.98

Step by Step Solution

1. Step 1: Write the proportion equation
   139,064.43 : 191,811 = 134,434.98 : x
2. Step 2: Convert to fraction form
   139,064.43/191,811 = 134,434.98/x
3. Step 3: Cross multiply
   139,064.43x = 191,811 × 134,434.98
4. Step 4: Simplify right side
   139,064.43x = 25,786,107,948.78
5. Step 5: Solve for x
   x = 25,786,107,948.78/139,064.43
6. Step 6: Final answer
   x = 185,425.62