Finding the Fourth Proportional to 70,911, 97,853.40 and 40,690.08

Step by Step Solution

1. Step 1: Write the proportion equation
   70,911 : 97,853.40 = 40,690.08 : x
2. Step 2: Convert to fraction form
   70,911/97,853.40 = 40,690.08/x
3. Step 3: Cross multiply
   70,911x = 97,853.40 × 40,690.08
4. Step 4: Simplify right side
   70,911x = 3,981,662,674.27
5. Step 5: Solve for x
   x = 3,981,662,674.27/70,911
6. Step 6: Final answer
   x = 56,150.14