Finding the Fourth Proportional to 31,402.99, 47,111.42 and 10,349.53

Step by Step Solution

1. Step 1: Write the proportion equation
   31,402.99 : 47,111.42 = 10,349.53 : x
2. Step 2: Convert to fraction form
   31,402.99/47,111.42 = 10,349.53/x
3. Step 3: Cross multiply
   31,402.99x = 47,111.42 × 10,349.53
4. Step 4: Simplify right side
   31,402.99x = 487,581,054.63
5. Step 5: Solve for x
   x = 487,581,054.63/31,402.99
6. Step 6: Final answer
   x = 15,526.58