Finding the Fourth Proportional to 112,638.72, 168,808.80 and 59,934.72

Step by Step Solution

1. Step 1: Write the proportion equation
   112,638.72 : 168,808.80 = 59,934.72 : x
2. Step 2: Convert to fraction form
   112,638.72/168,808.80 = 59,934.72/x
3. Step 3: Cross multiply
   112,638.72x = 168,808.80 × 59,934.72
4. Step 4: Simplify right side
   112,638.72x = 10,117,508,161.54
5. Step 5: Solve for x
   x = 10,117,508,161.54/112,638.72
6. Step 6: Final answer
   x = 89,822.65