Finding the Fourth Proportional to 48,111.10, 72,068.16 and 28,329.69

Step by Step Solution

1. Step 1: Write the proportion equation
   48,111.10 : 72,068.16 = 28,329.69 : x
2. Step 2: Convert to fraction form
   48,111.10/72,068.16 = 28,329.69/x
3. Step 3: Cross multiply
   48,111.10x = 72,068.16 × 28,329.69
4. Step 4: Simplify right side
   48,111.10x = 2,041,668,631.67
5. Step 5: Solve for x
   x = 2,041,668,631.67/48,111.10
6. Step 6: Final answer
   x = 42,436.54