Finding the Fourth Proportional to 118,080.15, 162,948.17 and 64,364.70

Step by Step Solution

1. Step 1: Write the proportion equation
   118,080.15 : 162,948.17 = 64,364.70 : x
2. Step 2: Convert to fraction form
   118,080.15/162,948.17 = 64,364.70/x
3. Step 3: Cross multiply
   118,080.15x = 162,948.17 × 64,364.70
4. Step 4: Simplify right side
   118,080.15x = 10,488,109,755.78
5. Step 5: Solve for x
   x = 10,488,109,755.78/118,080.15
6. Step 6: Final answer
   x = 88,821.95