Finding the Fourth Proportional to 42,916.86, 64,361.52 and 40,118.22

Step by Step Solution

1. Step 1: Write the proportion equation
   42,916.86 : 64,361.52 = 40,118.22 : x
2. Step 2: Convert to fraction form
   42,916.86/64,361.52 = 40,118.22/x
3. Step 3: Cross multiply
   42,916.86x = 64,361.52 × 40,118.22
4. Step 4: Simplify right side
   42,916.86x = 2,582,069,618.89
5. Step 5: Solve for x
   x = 2,582,069,618.89/42,916.86
6. Step 6: Final answer
   x = 60,164.46