Finding the Fourth Proportional to 231,641.84, 347,466.42 and 91,399.24

Step by Step Solution

1. Step 1: Write the proportion equation
   231,641.84 : 347,466.42 = 91,399.24 : x
2. Step 2: Convert to fraction form
   231,641.84/347,466.42 = 91,399.24/x
3. Step 3: Cross multiply
   231,641.84x = 347,466.42 × 91,399.24
4. Step 4: Simplify right side
   231,641.84x = 31,758,166,713.52
5. Step 5: Solve for x
   x = 31,758,166,713.52/231,641.84
6. Step 6: Final answer
   x = 137,100.30