Finding the Fourth Proportional to 42,667.13, 63,998.29 and 13,084.88

Step by Step Solution

1. Step 1: Write the proportion equation
   42,667.13 : 63,998.29 = 13,084.88 : x
2. Step 2: Convert to fraction form
   42,667.13/63,998.29 = 13,084.88/x
3. Step 3: Cross multiply
   42,667.13x = 63,998.29 × 13,084.88
4. Step 4: Simplify right side
   42,667.13x = 837,409,944.86
5. Step 5: Solve for x
   x = 837,409,944.86/42,667.13
6. Step 6: Final answer
   x = 19,626.58