Finding the Fourth Proportional to 22,931.51, 31,642.67 and 13,498.25

Step by Step Solution

1. Step 1: Write the proportion equation
   22,931.51 : 31,642.67 = 13,498.25 : x
2. Step 2: Convert to fraction form
   22,931.51/31,642.67 = 13,498.25/x
3. Step 3: Cross multiply
   22,931.51x = 31,642.67 × 13,498.25
4. Step 4: Simplify right side
   22,931.51x = 427,120,602.84
5. Step 5: Solve for x
   x = 427,120,602.84/22,931.51
6. Step 6: Final answer
   x = 18,625.93