Finding the Fourth Proportional to 112,310.31, 168,464.79 and 28,070.04

Step by Step Solution

1. Step 1: Write the proportion equation
   112,310.31 : 168,464.79 = 28,070.04 : x
2. Step 2: Convert to fraction form
   112,310.31/168,464.79 = 28,070.04/x
3. Step 3: Cross multiply
   112,310.31x = 168,464.79 × 28,070.04
4. Step 4: Simplify right side
   112,310.31x = 4,728,813,393.89
5. Step 5: Solve for x
   x = 4,728,813,393.89/112,310.31
6. Step 6: Final answer
   x = 42,104.89