Finding the Fourth Proportional to 71,035.08, 106,548.72 and 42,947.60

Step by Step Solution

1. Step 1: Write the proportion equation
   71,035.08 : 106,548.72 = 42,947.60 : x
2. Step 2: Convert to fraction form
   71,035.08/106,548.72 = 42,947.60/x
3. Step 3: Cross multiply
   71,035.08x = 106,548.72 × 42,947.60
4. Step 4: Simplify right side
   71,035.08x = 4,576,011,274.33
5. Step 5: Solve for x
   x = 4,576,011,274.33/71,035.08
6. Step 6: Final answer
   x = 64,419.03