Finding the Fourth Proportional to 109,361.54, 164,036.84 and 42,813.86

Step by Step Solution

1. Step 1: Write the proportion equation
   109,361.54 : 164,036.84 = 42,813.86 : x
2. Step 2: Convert to fraction form
   109,361.54/164,036.84 = 42,813.86/x
3. Step 3: Cross multiply
   109,361.54x = 164,036.84 × 42,813.86
4. Step 4: Simplify right side
   109,361.54x = 7,023,050,659.18
5. Step 5: Solve for x
   x = 7,023,050,659.18/109,361.54
6. Step 6: Final answer
   x = 64,218.65