Finding the Fourth Proportional to 118,061.47, 162,920.10 and 64,345.36

Step by Step Solution

1. Step 1: Write the proportion equation
   118,061.47 : 162,920.10 = 64,345.36 : x
2. Step 2: Convert to fraction form
   118,061.47/162,920.10 = 64,345.36/x
3. Step 3: Cross multiply
   118,061.47x = 162,920.10 × 64,345.36
4. Step 4: Simplify right side
   118,061.47x = 10,483,152,485.74
5. Step 5: Solve for x
   x = 10,483,152,485.74/118,061.47
6. Step 6: Final answer
   x = 88,794.02