Finding the Fourth Proportional to 146,300.63, 201,909.78 and 105,498.36

Step by Step Solution

1. Step 1: Write the proportion equation
   146,300.63 : 201,909.78 = 105,498.36 : x
2. Step 2: Convert to fraction form
   146,300.63/201,909.78 = 105,498.36/x
3. Step 3: Cross multiply
   146,300.63x = 201,909.78 × 105,498.36
4. Step 4: Simplify right side
   146,300.63x = 21,301,150,657.96
5. Step 5: Solve for x
   x = 21,301,150,657.96/146,300.63
6. Step 6: Final answer
   x = 145,598.49