Finding the Fourth Proportional to 72,507.68, 108,632.88 and 30,294.93

Step by Step Solution

1. Step 1: Write the proportion equation
   72,507.68 : 108,632.88 = 30,294.93 : x
2. Step 2: Convert to fraction form
   72,507.68/108,632.88 = 30,294.93/x
3. Step 3: Cross multiply
   72,507.68x = 108,632.88 × 30,294.93
4. Step 4: Simplify right side
   72,507.68x = 3,291,025,495.30
5. Step 5: Solve for x
   x = 3,291,025,495.30/72,507.68
6. Step 6: Final answer
   x = 45,388.65