Finding the Fourth Proportional to 13,870.32, 19,140.22 and 7,901.94

Step by Step Solution

1. Step 1: Write the proportion equation
   13,870.32 : 19,140.22 = 7,901.94 : x
2. Step 2: Convert to fraction form
   13,870.32/19,140.22 = 7,901.94/x
3. Step 3: Cross multiply
   13,870.32x = 19,140.22 × 7,901.94
4. Step 4: Simplify right side
   13,870.32x = 151,244,870.03
5. Step 5: Solve for x
   x = 151,244,870.03/13,870.32
6. Step 6: Final answer
   x = 10,904.21