Finding the Fourth Proportional to 112,730.16, 169,042.86 and 42,564.72

Step by Step Solution

1. Step 1: Write the proportion equation
   112,730.16 : 169,042.86 = 42,564.72 : x
2. Step 2: Convert to fraction form
   112,730.16/169,042.86 = 42,564.72/x
3. Step 3: Cross multiply
   112,730.16x = 169,042.86 × 42,564.72
4. Step 4: Simplify right side
   112,730.16x = 7,195,262,003.90
5. Step 5: Solve for x
   x = 7,195,262,003.90/112,730.16
6. Step 6: Final answer
   x = 63,827.30