Finding the Fourth Proportional to 10,070.04, 15,082.98 and 7,139.46

Step by Step Solution

1. Step 1: Write the proportion equation
   10,070.04 : 15,082.98 = 7,139.46 : x
2. Step 2: Convert to fraction form
   10,070.04/15,082.98 = 7,139.46/x
3. Step 3: Cross multiply
   10,070.04x = 15,082.98 × 7,139.46
4. Step 4: Simplify right side
   10,070.04x = 107,684,332.39
5. Step 5: Solve for x
   x = 107,684,332.39/10,070.04
6. Step 6: Final answer
   x = 10,693.54