Finding the Fourth Proportional to 13,787.39, 19,026.42 and 7,499.77

Step by Step Solution

1. Step 1: Write the proportion equation
   13,787.39 : 19,026.42 = 7,499.77 : x
2. Step 2: Convert to fraction form
   13,787.39/19,026.42 = 7,499.77/x
3. Step 3: Cross multiply
   13,787.39x = 19,026.42 × 7,499.77
4. Step 4: Simplify right side
   13,787.39x = 142,693,678.79
5. Step 5: Solve for x
   x = 142,693,678.79/13,787.39
6. Step 6: Final answer
   x = 10,349.58