Finding the Fourth Proportional to 65,108.88, 89,800.56 and 56,049.12

Step by Step Solution

1. Step 1: Write the proportion equation
   65,108.88 : 89,800.56 = 56,049.12 : x
2. Step 2: Convert to fraction form
   65,108.88/89,800.56 = 56,049.12/x
3. Step 3: Cross multiply
   65,108.88x = 89,800.56 × 56,049.12
4. Step 4: Simplify right side
   65,108.88x = 5,033,242,363.51
5. Step 5: Solve for x
   x = 5,033,242,363.51/65,108.88
6. Step 6: Final answer
   x = 77,305.01