Finding the Fourth Proportional to 42,860.22, 64,389.15 and 41,088.75

Step by Step Solution

1. Step 1: Write the proportion equation
   42,860.22 : 64,389.15 = 41,088.75 : x
2. Step 2: Convert to fraction form
   42,860.22/64,389.15 = 41,088.75/x
3. Step 3: Cross multiply
   42,860.22x = 64,389.15 × 41,088.75
4. Step 4: Simplify right side
   42,860.22x = 2,645,669,687.06
5. Step 5: Solve for x
   x = 2,645,669,687.06/42,860.22
6. Step 6: Final answer
   x = 61,727.86