Finding the Fourth Proportional to 118,316.82, 163,275.98 and 64,601.67

Step by Step Solution

1. Step 1: Write the proportion equation
   118,316.82 : 163,275.98 = 64,601.67 : x
2. Step 2: Convert to fraction form
   118,316.82/163,275.98 = 64,601.67/x
3. Step 3: Cross multiply
   118,316.82x = 163,275.98 × 64,601.67
4. Step 4: Simplify right side
   118,316.82x = 10,547,900,655.88
5. Step 5: Solve for x
   x = 10,547,900,655.88/118,316.82
6. Step 6: Final answer
   x = 89,149.63