Finding the Fourth Proportional to 42,877.72, 64,415.40 and 41,106.28

Step by Step Solution

1. Step 1: Write the proportion equation
   42,877.72 : 64,415.40 = 41,106.28 : x
2. Step 2: Convert to fraction form
   42,877.72/64,415.40 = 41,106.28/x
3. Step 3: Cross multiply
   42,877.72x = 64,415.40 × 41,106.28
4. Step 4: Simplify right side
   42,877.72x = 2,647,877,468.71
5. Step 5: Solve for x
   x = 2,647,877,468.71/42,877.72
6. Step 6: Final answer
   x = 61,754.16