Finding the Fourth Proportional to 118,702.82, 163,810.37 and 64,992.84

Step by Step Solution

1. Step 1: Write the proportion equation
   118,702.82 : 163,810.37 = 64,992.84 : x
2. Step 2: Convert to fraction form
   118,702.82/163,810.37 = 64,992.84/x
3. Step 3: Cross multiply
   118,702.82x = 163,810.37 × 64,992.84
4. Step 4: Simplify right side
   118,702.82x = 10,646,500,715.94
5. Step 5: Solve for x
   x = 10,646,500,715.94/118,702.82
6. Step 6: Final answer
   x = 89,690.38