Finding the Fourth Proportional to 74,915.72, 112,390.00 and 28,168.59

Step by Step Solution

1. Step 1: Write the proportion equation
   74,915.72 : 112,390.00 = 28,168.59 : x
2. Step 2: Convert to fraction form
   74,915.72/112,390.00 = 28,168.59/x
3. Step 3: Cross multiply
   74,915.72x = 112,390.00 × 28,168.59
4. Step 4: Simplify right side
   74,915.72x = 3,165,868,181.14
5. Step 5: Solve for x
   x = 3,165,868,181.14/74,915.72
6. Step 6: Final answer
   x = 42,259.06