Finding the Fourth Proportional to 112,387.94, 168,665.10 and 53,223.74

Step by Step Solution

1. Step 1: Write the proportion equation
   112,387.94 : 168,665.10 = 53,223.74 : x
2. Step 2: Convert to fraction form
   112,387.94/168,665.10 = 53,223.74/x
3. Step 3: Cross multiply
   112,387.94x = 168,665.10 × 53,223.74
4. Step 4: Simplify right side
   112,387.94x = 8,976,987,429.47
5. Step 5: Solve for x
   x = 8,976,987,429.47/112,387.94
6. Step 6: Final answer
   x = 79,875.01