Finding the Fourth Proportional to 74,856.63, 103,300.61 and 40,865.79

Step by Step Solution

1. Step 1: Write the proportion equation
   74,856.63 : 103,300.61 = 40,865.79 : x
2. Step 2: Convert to fraction form
   74,856.63/103,300.61 = 40,865.79/x
3. Step 3: Cross multiply
   74,856.63x = 103,300.61 × 40,865.79
4. Step 4: Simplify right side
   74,856.63x = 4,221,460,830.80
5. Step 5: Solve for x
   x = 4,221,460,830.80/74,856.63
6. Step 6: Final answer
   x = 56,393.95