Finding the Fourth Proportional to 105,503.60, 158,230.56 and 30,603.98

Step by Step Solution

1. Step 1: Write the proportion equation
   105,503.60 : 158,230.56 = 30,603.98 : x
2. Step 2: Convert to fraction form
   105,503.60/158,230.56 = 30,603.98/x
3. Step 3: Cross multiply
   105,503.60x = 158,230.56 × 30,603.98
4. Step 4: Simplify right side
   105,503.60x = 4,842,484,893.63
5. Step 5: Solve for x
   x = 4,842,484,893.63/105,503.60
6. Step 6: Final answer
   x = 45,898.76