Finding the Fourth Proportional to 64,753.63, 89,181.30 and 55,797.86

Step by Step Solution

1. Step 1: Write the proportion equation
   64,753.63 : 89,181.30 = 55,797.86 : x
2. Step 2: Convert to fraction form
   64,753.63/89,181.30 = 55,797.86/x
3. Step 3: Cross multiply
   64,753.63x = 89,181.30 × 55,797.86
4. Step 4: Simplify right side
   64,753.63x = 4,976,126,124.21
5. Step 5: Solve for x
   x = 4,976,126,124.21/64,753.63
6. Step 6: Final answer
   x = 76,847.06