Finding the Fourth Proportional to 70,490.18, 105,675.96 and 33,030.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,490.18 : 105,675.96 = 33,030.50 : x
2. Step 2: Convert to fraction form
   70,490.18/105,675.96 = 33,030.50/x
3. Step 3: Cross multiply
   70,490.18x = 105,675.96 × 33,030.50
4. Step 4: Simplify right side
   70,490.18x = 3,490,529,796.78
5. Step 5: Solve for x
   x = 3,490,529,796.78/70,490.18
6. Step 6: Final answer
   x = 49,517.96