Finding the Fourth Proportional to 72,688.05, 100,294.79 and 42,467.53

Step by Step Solution

1. Step 1: Write the proportion equation
   72,688.05 : 100,294.79 = 42,467.53 : x
2. Step 2: Convert to fraction form
   72,688.05/100,294.79 = 42,467.53/x
3. Step 3: Cross multiply
   72,688.05x = 100,294.79 × 42,467.53
4. Step 4: Simplify right side
   72,688.05x = 4,259,272,005.15
5. Step 5: Solve for x
   x = 4,259,272,005.15/72,688.05
6. Step 6: Final answer
   x = 58,596.60