Finding the Fourth Proportional to 115,848.64, 159,866.76 and 65,548.72

Step by Step Solution

1. Step 1: Write the proportion equation
   115,848.64 : 159,866.76 = 65,548.72 : x
2. Step 2: Convert to fraction form
   115,848.64/159,866.76 = 65,548.72/x
3. Step 3: Cross multiply
   115,848.64x = 159,866.76 × 65,548.72
4. Step 4: Simplify right side
   115,848.64x = 10,479,061,488.55
5. Step 5: Solve for x
   x = 10,479,061,488.55/115,848.64
6. Step 6: Final answer
   x = 90,454.76