Finding the Fourth Proportional to 49,665.10, 74,495.98 and 21,585.16

Step by Step Solution

1. Step 1: Write the proportion equation
   49,665.10 : 74,495.98 = 21,585.16 : x
2. Step 2: Convert to fraction form
   49,665.10/74,495.98 = 21,585.16/x
3. Step 3: Cross multiply
   49,665.10x = 74,495.98 × 21,585.16
4. Step 4: Simplify right side
   49,665.10x = 1,608,007,647.66
5. Step 5: Solve for x
   x = 1,608,007,647.66/49,665.10
6. Step 6: Final answer
   x = 32,377.01