Finding the Fourth Proportional to 365,111.82, 546,335.52 and 215,423.82

Step by Step Solution

1. Step 1: Write the proportion equation
   365,111.82 : 546,335.52 = 215,423.82 : x
2. Step 2: Convert to fraction form
   365,111.82/546,335.52 = 215,423.82/x
3. Step 3: Cross multiply
   365,111.82x = 546,335.52 × 215,423.82
4. Step 4: Simplify right side
   365,111.82x = 117,693,684,720.09
5. Step 5: Solve for x
   x = 117,693,684,720.09/365,111.82
6. Step 6: Final answer
   x = 322,349.70