Finding the Fourth Proportional to 117,746.56, 162,488 and 64,754.56

Step by Step Solution

1. Step 1: Write the proportion equation
   117,746.56 : 162,488 = 64,754.56 : x
2. Step 2: Convert to fraction form
   117,746.56/162,488 = 64,754.56/x
3. Step 3: Cross multiply
   117,746.56x = 162,488 × 64,754.56
4. Step 4: Simplify right side
   117,746.56x = 10,521,838,945.28
5. Step 5: Solve for x
   x = 10,521,838,945.28/117,746.56
6. Step 6: Final answer
   x = 89,360.05