Finding the Fourth Proportional to 91,748.63, 137,623.16 and 25,189.67

Step by Step Solution

1. Step 1: Write the proportion equation
   91,748.63 : 137,623.16 = 25,189.67 : x
2. Step 2: Convert to fraction form
   91,748.63/137,623.16 = 25,189.67/x
3. Step 3: Cross multiply
   91,748.63x = 137,623.16 × 25,189.67
4. Step 4: Simplify right side
   91,748.63x = 3,466,681,984.76
5. Step 5: Solve for x
   x = 3,466,681,984.76/91,748.63
6. Step 6: Final answer
   x = 37,784.56