Finding the Fourth Proportional to 42,666.38, 63,997.17 and 13,084.13

Step by Step Solution

1. Step 1: Write the proportion equation
   42,666.38 : 63,997.17 = 13,084.13 : x
2. Step 2: Convert to fraction form
   42,666.38/63,997.17 = 13,084.13/x
3. Step 3: Cross multiply
   42,666.38x = 63,997.17 × 13,084.13
4. Step 4: Simplify right side
   42,666.38x = 837,347,066.50
5. Step 5: Solve for x
   x = 837,347,066.50/42,666.38
6. Step 6: Final answer
   x = 19,625.46