Finding the Fourth Proportional to 152,618.45, 210,667.97 and 104,185.71

Step by Step Solution

1. Step 1: Write the proportion equation
   152,618.45 : 210,667.97 = 104,185.71 : x
2. Step 2: Convert to fraction form
   152,618.45/210,667.97 = 104,185.71/x
3. Step 3: Cross multiply
   152,618.45x = 210,667.97 × 104,185.71
4. Step 4: Simplify right side
   152,618.45x = 21,948,592,289.17
5. Step 5: Solve for x
   x = 21,948,592,289.17/152,618.45
6. Step 6: Final answer
   x = 143,813.50