Finding the Fourth Proportional to 19,904.29, 29,857.49 and 5,113.32

Step by Step Solution

1. Step 1: Write the proportion equation
   19,904.29 : 29,857.49 = 5,113.32 : x
2. Step 2: Convert to fraction form
   19,904.29/29,857.49 = 5,113.32/x
3. Step 3: Cross multiply
   19,904.29x = 29,857.49 × 5,113.32
4. Step 4: Simplify right side
   19,904.29x = 152,670,900.77
5. Step 5: Solve for x
   x = 152,670,900.77/19,904.29
6. Step 6: Final answer
   x = 7,670.25