Finding the Fourth Proportional to 313,710.90, 470,495.67 and 89,066.71

Step by Step Solution

1. Step 1: Write the proportion equation
   313,710.90 : 470,495.67 = 89,066.71 : x
2. Step 2: Convert to fraction form
   313,710.90/470,495.67 = 89,066.71/x
3. Step 3: Cross multiply
   313,710.90x = 470,495.67 × 89,066.71
4. Step 4: Simplify right side
   313,710.90x = 41,905,501,396.15
5. Step 5: Solve for x
   x = 41,905,501,396.15/313,710.90
6. Step 6: Final answer
   x = 133,580.00