Finding the Fourth Proportional to 101,746.22, 140,271.63 and 85,802.72

Step by Step Solution

1. Step 1: Write the proportion equation
   101,746.22 : 140,271.63 = 85,802.72 : x
2. Step 2: Convert to fraction form
   101,746.22/140,271.63 = 85,802.72/x
3. Step 3: Cross multiply
   101,746.22x = 140,271.63 × 85,802.72
4. Step 4: Simplify right side
   101,746.22x = 12,035,687,392.83
5. Step 5: Solve for x
   x = 12,035,687,392.83/101,746.22
6. Step 6: Final answer
   x = 118,291.25