Finding the Fourth Proportional to 139,124.61, 191,846.75 and 82,525.05

Step by Step Solution

1. Step 1: Write the proportion equation
   139,124.61 : 191,846.75 = 82,525.05 : x
2. Step 2: Convert to fraction form
   139,124.61/191,846.75 = 82,525.05/x
3. Step 3: Cross multiply
   139,124.61x = 191,846.75 × 82,525.05
4. Step 4: Simplify right side
   139,124.61x = 15,832,162,223.46
5. Step 5: Solve for x
   x = 15,832,162,223.46/139,124.61
6. Step 6: Final answer
   x = 113,798.43