Finding the Fourth Proportional to 72,872.05, 100,588.59 and 42,667.07

Step by Step Solution

1. Step 1: Write the proportion equation
   72,872.05 : 100,588.59 = 42,667.07 : x
2. Step 2: Convert to fraction form
   72,872.05/100,588.59 = 42,667.07/x
3. Step 3: Cross multiply
   72,872.05x = 100,588.59 × 42,667.07
4. Step 4: Simplify right side
   72,872.05x = 4,291,820,410.73
5. Step 5: Solve for x
   x = 4,291,820,410.73/72,872.05
6. Step 6: Final answer
   x = 58,895.29