Finding the Fourth Proportional to 112,853.43, 155,731.95 and 65,103.93

Step by Step Solution

1. Step 1: Write the proportion equation
   112,853.43 : 155,731.95 = 65,103.93 : x
2. Step 2: Convert to fraction form
   112,853.43/155,731.95 = 65,103.93/x
3. Step 3: Cross multiply
   112,853.43x = 155,731.95 × 65,103.93
4. Step 4: Simplify right side
   112,853.43x = 10,138,761,971.56
5. Step 5: Solve for x
   x = 10,138,761,971.56/112,853.43
6. Step 6: Final answer
   x = 89,840.09