Finding the Fourth Proportional to 12,801.31, 19,188.78 and 4,901.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,801.31 : 19,188.78 = 4,901.96 : x
2. Step 2: Convert to fraction form
   12,801.31/19,188.78 = 4,901.96/x
3. Step 3: Cross multiply
   12,801.31x = 19,188.78 × 4,901.96
4. Step 4: Simplify right side
   12,801.31x = 94,062,632.01
5. Step 5: Solve for x
   x = 94,062,632.01/12,801.31
6. Step 6: Final answer
   x = 7,347.89