Finding the Fourth Proportional to 103,333.44, 155,003.98 and 28,459.38

Step by Step Solution

1. Step 1: Write the proportion equation
   103,333.44 : 155,003.98 = 28,459.38 : x
2. Step 2: Convert to fraction form
   103,333.44/155,003.98 = 28,459.38/x
3. Step 3: Cross multiply
   103,333.44x = 155,003.98 × 28,459.38
4. Step 4: Simplify right side
   103,333.44x = 4,411,317,168.33
5. Step 5: Solve for x
   x = 4,411,317,168.33/103,333.44
6. Step 6: Final answer
   x = 42,690.12