Finding the Fourth Proportional to 64,667.30, 96,429.85 and 56,802

Step by Step Solution

1. Step 1: Write the proportion equation
   64,667.30 : 96,429.85 = 56,802 : x
2. Step 2: Convert to fraction form
   64,667.30/96,429.85 = 56,802/x
3. Step 3: Cross multiply
   64,667.30x = 96,429.85 × 56,802
4. Step 4: Simplify right side
   64,667.30x = 5,477,408,339.70
5. Step 5: Solve for x
   x = 5,477,408,339.70/64,667.30
6. Step 6: Final answer
   x = 84,701.36