Finding the Fourth Proportional to 93,304.82, 139,957.38 and 28,389.80

Step by Step Solution

1. Step 1: Write the proportion equation
   93,304.82 : 139,957.38 = 28,389.80 : x
2. Step 2: Convert to fraction form
   93,304.82/139,957.38 = 28,389.80/x
3. Step 3: Cross multiply
   93,304.82x = 139,957.38 × 28,389.80
4. Step 4: Simplify right side
   93,304.82x = 3,973,362,026.72
5. Step 5: Solve for x
   x = 3,973,362,026.72/93,304.82
6. Step 6: Final answer
   x = 42,584.75