Finding the Fourth Proportional to 39,781.29, 59,667.47 and 10,199.82

Step by Step Solution

1. Step 1: Write the proportion equation
   39,781.29 : 59,667.47 = 10,199.82 : x
2. Step 2: Convert to fraction form
   39,781.29/59,667.47 = 10,199.82/x
3. Step 3: Cross multiply
   39,781.29x = 59,667.47 × 10,199.82
4. Step 4: Simplify right side
   39,781.29x = 608,597,155.52
5. Step 5: Solve for x
   x = 608,597,155.52/39,781.29
6. Step 6: Final answer
   x = 15,298.58