Finding the Fourth Proportional to 280,426.00, 386,985.88 and 153,101.59

Step by Step Solution

1. Step 1: Write the proportion equation
   280,426.00 : 386,985.88 = 153,101.59 : x
2. Step 2: Convert to fraction form
   280,426.00/386,985.88 = 153,101.59/x
3. Step 3: Cross multiply
   280,426.00x = 386,985.88 × 153,101.59
4. Step 4: Simplify right side
   280,426.00x = 59,248,152,185.33
5. Step 5: Solve for x
   x = 59,248,152,185.33/280,426.00
6. Step 6: Final answer
   x = 211,279.10