Finding the Fourth Proportional to 103,667.67, 143,072.99 and 58,356.67

Step by Step Solution

1. Step 1: Write the proportion equation
   103,667.67 : 143,072.99 = 58,356.67 : x
2. Step 2: Convert to fraction form
   103,667.67/143,072.99 = 58,356.67/x
3. Step 3: Cross multiply
   103,667.67x = 143,072.99 × 58,356.67
4. Step 4: Simplify right side
   103,667.67x = 8,349,263,263.34
5. Step 5: Solve for x
   x = 8,349,263,263.34/103,667.67
6. Step 6: Final answer
   x = 80,538.74