Finding the Fourth Proportional to 72,503.98, 100,055.05 and 42,286.93

Step by Step Solution

1. Step 1: Write the proportion equation
   72,503.98 : 100,055.05 = 42,286.93 : x
2. Step 2: Convert to fraction form
   72,503.98/100,055.05 = 42,286.93/x
3. Step 3: Cross multiply
   72,503.98x = 100,055.05 × 42,286.93
4. Step 4: Simplify right side
   72,503.98x = 4,231,020,895.50
5. Step 5: Solve for x
   x = 4,231,020,895.50/72,503.98
6. Step 6: Final answer
   x = 58,355.71