Finding the Fourth Proportional to 47,002.42, 70,522.07 and 20,688.70

Step by Step Solution

1. Step 1: Write the proportion equation
   47,002.42 : 70,522.07 = 20,688.70 : x
2. Step 2: Convert to fraction form
   47,002.42/70,522.07 = 20,688.70/x
3. Step 3: Cross multiply
   47,002.42x = 70,522.07 × 20,688.70
4. Step 4: Simplify right side
   47,002.42x = 1,459,009,949.61
5. Step 5: Solve for x
   x = 1,459,009,949.61/47,002.42
6. Step 6: Final answer
   x = 31,041.17