Finding the Fourth Proportional to 25,088.56, 37,758.55 and 18,880.72

Step by Step Solution

1. Step 1: Write the proportion equation
   25,088.56 : 37,758.55 = 18,880.72 : x
2. Step 2: Convert to fraction form
   25,088.56/37,758.55 = 18,880.72/x
3. Step 3: Cross multiply
   25,088.56x = 37,758.55 × 18,880.72
4. Step 4: Simplify right side
   25,088.56x = 712,908,610.16
5. Step 5: Solve for x
   x = 712,908,610.16/25,088.56
6. Step 6: Final answer
   x = 28,415.68