Finding the Fourth Proportional to 118,330.86, 163,290.49 and 64,605.52

Step by Step Solution

1. Step 1: Write the proportion equation
   118,330.86 : 163,290.49 = 64,605.52 : x
2. Step 2: Convert to fraction form
   118,330.86/163,290.49 = 64,605.52/x
3. Step 3: Cross multiply
   118,330.86x = 163,290.49 × 64,605.52
4. Step 4: Simplify right side
   118,330.86x = 10,549,467,017.50
5. Step 5: Solve for x
   x = 10,549,467,017.50/118,330.86
6. Step 6: Final answer
   x = 89,152.29