Finding the Fourth Proportional to 70,018.86, 105,027.75 and 17,427.99

Step by Step Solution

1. Step 1: Write the proportion equation
   70,018.86 : 105,027.75 = 17,427.99 : x
2. Step 2: Convert to fraction form
   70,018.86/105,027.75 = 17,427.99/x
3. Step 3: Cross multiply
   70,018.86x = 105,027.75 × 17,427.99
4. Step 4: Simplify right side
   70,018.86x = 1,830,422,576.72
5. Step 5: Solve for x
   x = 1,830,422,576.72/70,018.86
6. Step 6: Final answer
   x = 26,141.85