Finding the Fourth Proportional to 42,069.00, 63,089.79 and 13,981.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,069.00 : 63,089.79 = 13,981.50 : x
2. Step 2: Convert to fraction form
   42,069.00/63,089.79 = 13,981.50/x
3. Step 3: Cross multiply
   42,069.00x = 63,089.79 × 13,981.50
4. Step 4: Simplify right side
   42,069.00x = 882,090,023.89
5. Step 5: Solve for x
   x = 882,090,023.89/42,069.00
6. Step 6: Final answer
   x = 20,967.70