Finding the Fourth Proportional to 117,952, 162,774.72 and 64,960

Step by Step Solution

1. Step 1: Write the proportion equation
   117,952 : 162,774.72 = 64,960 : x
2. Step 2: Convert to fraction form
   117,952/162,774.72 = 64,960/x
3. Step 3: Cross multiply
   117,952x = 162,774.72 × 64,960
4. Step 4: Simplify right side
   117,952x = 10,573,845,811.20
5. Step 5: Solve for x
   x = 10,573,845,811.20/117,952
6. Step 6: Final answer
   x = 89,645.33