Finding the Fourth Proportional to 123,580.39, 185,385.17 and 92,612.47

Step by Step Solution

1. Step 1: Write the proportion equation
   123,580.39 : 185,385.17 = 92,612.47 : x
2. Step 2: Convert to fraction form
   123,580.39/185,385.17 = 92,612.47/x
3. Step 3: Cross multiply
   123,580.39x = 185,385.17 × 92,612.47
4. Step 4: Simplify right side
   123,580.39x = 17,168,978,495.07
5. Step 5: Solve for x
   x = 17,168,978,495.07/123,580.39
6. Step 6: Final answer
   x = 138,929.64