Finding the Fourth Proportional to 64,978.15, 97,479.37 and 20,592.98

Step by Step Solution

1. Step 1: Write the proportion equation
   64,978.15 : 97,479.37 = 20,592.98 : x
2. Step 2: Convert to fraction form
   64,978.15/97,479.37 = 20,592.98/x
3. Step 3: Cross multiply
   64,978.15x = 97,479.37 × 20,592.98
4. Step 4: Simplify right side
   64,978.15x = 2,007,390,716.82
5. Step 5: Solve for x
   x = 2,007,390,716.82/64,978.15
6. Step 6: Final answer
   x = 30,893.32