Finding the Fourth Proportional to 13,839.01, 19,097.31 and 7,789

Step by Step Solution

1. Step 1: Write the proportion equation
   13,839.01 : 19,097.31 = 7,789 : x
2. Step 2: Convert to fraction form
   13,839.01/19,097.31 = 7,789/x
3. Step 3: Cross multiply
   13,839.01x = 19,097.31 × 7,789
4. Step 4: Simplify right side
   13,839.01x = 148,748,947.59
5. Step 5: Solve for x
   x = 148,748,947.59/13,839.01
6. Step 6: Final answer
   x = 10,748.53