Finding the Fourth Proportional to 47,102, 64,963.16 and 30,985.87

Step by Step Solution

1. Step 1: Write the proportion equation
   47,102 : 64,963.16 = 30,985.87 : x
2. Step 2: Convert to fraction form
   47,102/64,963.16 = 30,985.87/x
3. Step 3: Cross multiply
   47,102x = 64,963.16 × 30,985.87
4. Step 4: Simplify right side
   47,102x = 2,012,940,030.55
5. Step 5: Solve for x
   x = 2,012,940,030.55/47,102
6. Step 6: Final answer
   x = 42,735.77