Finding the Fourth Proportional to 47,258.04, 70,900.90 and 13,979.00

Step by Step Solution

1. Step 1: Write the proportion equation
   47,258.04 : 70,900.90 = 13,979.00 : x
2. Step 2: Convert to fraction form
   47,258.04/70,900.90 = 13,979.00/x
3. Step 3: Cross multiply
   47,258.04x = 70,900.90 × 13,979.00
4. Step 4: Simplify right side
   47,258.04x = 991,123,503.22
5. Step 5: Solve for x
   x = 991,123,503.22/47,258.04
6. Step 6: Final answer
   x = 20,972.59