Finding the Fourth Proportional to 118,892.61, 164,070.77 and 65,176.65

Step by Step Solution

1. Step 1: Write the proportion equation
   118,892.61 : 164,070.77 = 65,176.65 : x
2. Step 2: Convert to fraction form
   118,892.61/164,070.77 = 65,176.65/x
3. Step 3: Cross multiply
   118,892.61x = 164,070.77 × 65,176.65
4. Step 4: Simplify right side
   118,892.61x = 10,693,582,825.64
5. Step 5: Solve for x
   x = 10,693,582,825.64/118,892.61
6. Step 6: Final answer
   x = 89,943.21