Finding the Fourth Proportional to 91,618.56, 137,425.68 and 29,289.60

Step by Step Solution

1. Step 1: Write the proportion equation
   91,618.56 : 137,425.68 = 29,289.60 : x
2. Step 2: Convert to fraction form
   91,618.56/137,425.68 = 29,289.60/x
3. Step 3: Cross multiply
   91,618.56x = 137,425.68 × 29,289.60
4. Step 4: Simplify right side
   91,618.56x = 4,025,143,196.93
5. Step 5: Solve for x
   x = 4,025,143,196.93/91,618.56
6. Step 6: Final answer
   x = 43,933.71