Finding the Fourth Proportional to 13,874.31, 19,145.73 and 7,905.93

Step by Step Solution

1. Step 1: Write the proportion equation
   13,874.31 : 19,145.73 = 7,905.93 : x
2. Step 2: Convert to fraction form
   13,874.31/19,145.73 = 7,905.93/x
3. Step 3: Cross multiply
   13,874.31x = 19,145.73 × 7,905.93
4. Step 4: Simplify right side
   13,874.31x = 151,364,801.18
5. Step 5: Solve for x
   x = 151,364,801.18/13,874.31
6. Step 6: Final answer
   x = 10,909.72