Finding the Fourth Proportional to 345,557.17, 518,300.72 and 92,804.82

Step by Step Solution

1. Step 1: Write the proportion equation
   345,557.17 : 518,300.72 = 92,804.82 : x
2. Step 2: Convert to fraction form
   345,557.17/518,300.72 = 92,804.82/x
3. Step 3: Cross multiply
   345,557.17x = 518,300.72 × 92,804.82
4. Step 4: Simplify right side
   345,557.17x = 48,100,805,025.47
5. Step 5: Solve for x
   x = 48,100,805,025.47/345,557.17
6. Step 6: Final answer
   x = 139,197.82