Finding the Fourth Proportional to 10,123.61, 13,970.13 and 7,470.05

Step by Step Solution

1. Step 1: Write the proportion equation
   10,123.61 : 13,970.13 = 7,470.05 : x
2. Step 2: Convert to fraction form
   10,123.61/13,970.13 = 7,470.05/x
3. Step 3: Cross multiply
   10,123.61x = 13,970.13 × 7,470.05
4. Step 4: Simplify right side
   10,123.61x = 104,357,499.76
5. Step 5: Solve for x
   x = 104,357,499.76/10,123.61
6. Step 6: Final answer
   x = 10,308.33