Finding the Fourth Proportional to 91,770.24, 137,713.76 and 39,180.16

Step by Step Solution

1. Step 1: Write the proportion equation
   91,770.24 : 137,713.76 = 39,180.16 : x
2. Step 2: Convert to fraction form
   91,770.24/137,713.76 = 39,180.16/x
3. Step 3: Cross multiply
   91,770.24x = 137,713.76 × 39,180.16
4. Step 4: Simplify right side
   91,770.24x = 5,395,647,151.00
5. Step 5: Solve for x
   x = 5,395,647,151.00/91,770.24
6. Step 6: Final answer
   x = 58,795.17