Finding the Fourth Proportional to 345,549.77, 518,322.59 and 89,382.35

Step by Step Solution

1. Step 1: Write the proportion equation
   345,549.77 : 518,322.59 = 89,382.35 : x
2. Step 2: Convert to fraction form
   345,549.77/518,322.59 = 89,382.35/x
3. Step 3: Cross multiply
   345,549.77x = 518,322.59 × 89,382.35
4. Step 4: Simplify right side
   345,549.77x = 46,328,891,152.29
5. Step 5: Solve for x
   x = 46,328,891,152.29/345,549.77
6. Step 6: Final answer
   x = 134,072.99