Finding the Fourth Proportional to 42,068.04, 63,102.61 and 13,988.10

Step by Step Solution

1. Step 1: Write the proportion equation
   42,068.04 : 63,102.61 = 13,988.10 : x
2. Step 2: Convert to fraction form
   42,068.04/63,102.61 = 13,988.10/x
3. Step 3: Cross multiply
   42,068.04x = 63,102.61 × 13,988.10
4. Step 4: Simplify right side
   42,068.04x = 882,685,399.79
5. Step 5: Solve for x
   x = 882,685,399.79/42,068.04
6. Step 6: Final answer
   x = 20,982.33