Finding the Fourth Proportional to 92,598.89, 138,900.38 and 64,107.77

Step by Step Solution

1. Step 1: Write the proportion equation
   92,598.89 : 138,900.38 = 64,107.77 : x
2. Step 2: Convert to fraction form
   92,598.89/138,900.38 = 64,107.77/x
3. Step 3: Cross multiply
   92,598.89x = 138,900.38 × 64,107.77
4. Step 4: Simplify right side
   92,598.89x = 8,904,592,598.91
5. Step 5: Solve for x
   x = 8,904,592,598.91/92,598.89
6. Step 6: Final answer
   x = 96,163.07