Finding the Fourth Proportional to 31,028.61, 42,820.38 and 19,098.93

Step by Step Solution

1. Step 1: Write the proportion equation
   31,028.61 : 42,820.38 = 19,098.93 : x
2. Step 2: Convert to fraction form
   31,028.61/42,820.38 = 19,098.93/x
3. Step 3: Cross multiply
   31,028.61x = 42,820.38 × 19,098.93
4. Step 4: Simplify right side
   31,028.61x = 817,823,440.19
5. Step 5: Solve for x
   x = 817,823,440.19/31,028.61
6. Step 6: Final answer
   x = 26,357.08