Finding the Fourth Proportional to 28,477.98, 42,696.45 and 17,382.06

Step by Step Solution

1. Step 1: Write the proportion equation
   28,477.98 : 42,696.45 = 17,382.06 : x
2. Step 2: Convert to fraction form
   28,477.98/42,696.45 = 17,382.06/x
3. Step 3: Cross multiply
   28,477.98x = 42,696.45 × 17,382.06
4. Step 4: Simplify right side
   28,477.98x = 742,152,255.69
5. Step 5: Solve for x
   x = 742,152,255.69/28,477.98
6. Step 6: Final answer
   x = 26,060.57