Finding the Fourth Proportional to 72,910.53, 100,641.69 and 42,705.59

Step by Step Solution

1. Step 1: Write the proportion equation
   72,910.53 : 100,641.69 = 42,705.59 : x
2. Step 2: Convert to fraction form
   72,910.53/100,641.69 = 42,705.59/x
3. Step 3: Cross multiply
   72,910.53x = 100,641.69 × 42,705.59
4. Step 4: Simplify right side
   72,910.53x = 4,297,962,246.84
5. Step 5: Solve for x
   x = 4,297,962,246.84/72,910.53
6. Step 6: Final answer
   x = 58,948.44