Finding the Fourth Proportional to 70,384.28, 97,131.89 and 40,169

Step by Step Solution

1. Step 1: Write the proportion equation
   70,384.28 : 97,131.89 = 40,169 : x
2. Step 2: Convert to fraction form
   70,384.28/97,131.89 = 40,169/x
3. Step 3: Cross multiply
   70,384.28x = 97,131.89 × 40,169
4. Step 4: Simplify right side
   70,384.28x = 3,901,690,889.41
5. Step 5: Solve for x
   x = 3,901,690,889.41/70,384.28
6. Step 6: Final answer
   x = 55,434.12