Finding the Fourth Proportional to 231,870.50, 347,704.47 and 82,061

Step by Step Solution

1. Step 1: Write the proportion equation
   231,870.50 : 347,704.47 = 82,061 : x
2. Step 2: Convert to fraction form
   231,870.50/347,704.47 = 82,061/x
3. Step 3: Cross multiply
   231,870.50x = 347,704.47 × 82,061
4. Step 4: Simplify right side
   231,870.50x = 28,532,976,512.67
5. Step 5: Solve for x
   x = 28,532,976,512.67/231,870.50
6. Step 6: Final answer
   x = 123,055.66