Finding the Fourth Proportional to 42,771.71, 64,122.91 and 17,830.46

Step by Step Solution

1. Step 1: Write the proportion equation
   42,771.71 : 64,122.91 = 17,830.46 : x
2. Step 2: Convert to fraction form
   42,771.71/64,122.91 = 17,830.46/x
3. Step 3: Cross multiply
   42,771.71x = 64,122.91 × 17,830.46
4. Step 4: Simplify right side
   42,771.71x = 1,143,341,097.57
5. Step 5: Solve for x
   x = 1,143,341,097.57/42,771.71
6. Step 6: Final answer
   x = 26,731.24