Finding the Fourth Proportional to 72,516.32, 108,779.72 and 30,354

Step by Step Solution

1. Step 1: Write the proportion equation
   72,516.32 : 108,779.72 = 30,354 : x
2. Step 2: Convert to fraction form
   72,516.32/108,779.72 = 30,354/x
3. Step 3: Cross multiply
   72,516.32x = 108,779.72 × 30,354
4. Step 4: Simplify right side
   72,516.32x = 3,301,899,620.88
5. Step 5: Solve for x
   x = 3,301,899,620.88/72,516.32
6. Step 6: Final answer
   x = 45,533.19