Finding the Fourth Proportional to 349,300.10, 482,086.38 and 213,412.61

Step by Step Solution

1. Step 1: Write the proportion equation
   349,300.10 : 482,086.38 = 213,412.61 : x
2. Step 2: Convert to fraction form
   349,300.10/482,086.38 = 213,412.61/x
3. Step 3: Cross multiply
   349,300.10x = 482,086.38 × 213,412.61
4. Step 4: Simplify right side
   349,300.10x = 102,883,312,601.25
5. Step 5: Solve for x
   x = 102,883,312,601.25/349,300.10
6. Step 6: Final answer
   x = 294,541.32