Finding the Fourth Proportional to 49,655.60, 68,513.28 and 30,783.68

Step by Step Solution

1. Step 1: Write the proportion equation
   49,655.60 : 68,513.28 = 30,783.68 : x
2. Step 2: Convert to fraction form
   49,655.60/68,513.28 = 30,783.68/x
3. Step 3: Cross multiply
   49,655.60x = 68,513.28 × 30,783.68
4. Step 4: Simplify right side
   49,655.60x = 2,109,090,887.27
5. Step 5: Solve for x
   x = 2,109,090,887.27/49,655.60
6. Step 6: Final answer
   x = 42,474.38