Finding the Fourth Proportional to 49,931.08, 68,887.98 and 30,542.86

Step by Step Solution

1. Step 1: Write the proportion equation
   49,931.08 : 68,887.98 = 30,542.86 : x
2. Step 2: Convert to fraction form
   49,931.08/68,887.98 = 30,542.86/x
3. Step 3: Cross multiply
   49,931.08x = 68,887.98 × 30,542.86
4. Step 4: Simplify right side
   49,931.08x = 2,104,035,928.82
5. Step 5: Solve for x
   x = 2,104,035,928.82/49,931.08
6. Step 6: Final answer
   x = 42,138.80