Finding the Fourth Proportional to 118,180.33, 163,089.90 and 64,465.59

Step by Step Solution

1. Step 1: Write the proportion equation
   118,180.33 : 163,089.90 = 64,465.59 : x
2. Step 2: Convert to fraction form
   118,180.33/163,089.90 = 64,465.59/x
3. Step 3: Cross multiply
   118,180.33x = 163,089.90 × 64,465.59
4. Step 4: Simplify right side
   118,180.33x = 10,513,685,488.76
5. Step 5: Solve for x
   x = 10,513,685,488.76/118,180.33
6. Step 6: Final answer
   x = 88,963.07