Finding the Fourth Proportional to 59,676.48, 89,870.04 and 51,978.24

Step by Step Solution

1. Step 1: Write the proportion equation
   59,676.48 : 89,870.04 = 51,978.24 : x
2. Step 2: Convert to fraction form
   59,676.48/89,870.04 = 51,978.24/x
3. Step 3: Cross multiply
   59,676.48x = 89,870.04 × 51,978.24
4. Step 4: Simplify right side
   59,676.48x = 4,671,286,507.93
5. Step 5: Solve for x
   x = 4,671,286,507.93/59,676.48
6. Step 6: Final answer
   x = 78,276.84