Finding the Fourth Proportional to 42,777.41, 64,182.50 and 17,810.75

Step by Step Solution

1. Step 1: Write the proportion equation
   42,777.41 : 64,182.50 = 17,810.75 : x
2. Step 2: Convert to fraction form
   42,777.41/64,182.50 = 17,810.75/x
3. Step 3: Cross multiply
   42,777.41x = 64,182.50 × 17,810.75
4. Step 4: Simplify right side
   42,777.41x = 1,143,138,051.91
5. Step 5: Solve for x
   x = 1,143,138,051.91/42,777.41
6. Step 6: Final answer
   x = 26,722.94