Finding the Fourth Proportional to 112,389.88, 168,609.12 and 59,791.72

Step by Step Solution

1. Step 1: Write the proportion equation
   112,389.88 : 168,609.12 = 59,791.72 : x
2. Step 2: Convert to fraction form
   112,389.88/168,609.12 = 59,791.72/x
3. Step 3: Cross multiply
   112,389.88x = 168,609.12 × 59,791.72
4. Step 4: Simplify right side
   112,389.88x = 10,081,429,292.49
5. Step 5: Solve for x
   x = 10,081,429,292.49/112,389.88
6. Step 6: Final answer
   x = 89,700.51