Finding the Fourth Proportional to 40,987.78, 56,541.74 and 25,875

Step by Step Solution

1. Step 1: Write the proportion equation
   40,987.78 : 56,541.74 = 25,875 : x
2. Step 2: Convert to fraction form
   40,987.78/56,541.74 = 25,875/x
3. Step 3: Cross multiply
   40,987.78x = 56,541.74 × 25,875
4. Step 4: Simplify right side
   40,987.78x = 1,463,017,522.50
5. Step 5: Solve for x
   x = 1,463,017,522.50/40,987.78
6. Step 6: Final answer
   x = 35,693.99