Finding the Fourth Proportional to 91,671.86, 137,507.90 and 25,112.56

Step by Step Solution

1. Step 1: Write the proportion equation
   91,671.86 : 137,507.90 = 25,112.56 : x
2. Step 2: Convert to fraction form
   91,671.86/137,507.90 = 25,112.56/x
3. Step 3: Cross multiply
   91,671.86x = 137,507.90 × 25,112.56
4. Step 4: Simplify right side
   91,671.86x = 3,453,175,389.22
5. Step 5: Solve for x
   x = 3,453,175,389.22/91,671.86
6. Step 6: Final answer
   x = 37,668.87