Finding the Fourth Proportional to 139,477.14, 209,088.14 and 60,562.89

Step by Step Solution

1. Step 1: Write the proportion equation
   139,477.14 : 209,088.14 = 60,562.89 : x
2. Step 2: Convert to fraction form
   139,477.14/209,088.14 = 60,562.89/x
3. Step 3: Cross multiply
   139,477.14x = 209,088.14 × 60,562.89
4. Step 4: Simplify right side
   139,477.14x = 12,662,981,720.31
5. Step 5: Solve for x
   x = 12,662,981,720.31/139,477.14
6. Step 6: Final answer
   x = 90,788.94