Finding the Fourth Proportional to 72,070.76, 99,429 and 48,159.56

Step by Step Solution

1. Step 1: Write the proportion equation
   72,070.76 : 99,429 = 48,159.56 : x
2. Step 2: Convert to fraction form
   72,070.76/99,429 = 48,159.56/x
3. Step 3: Cross multiply
   72,070.76x = 99,429 × 48,159.56
4. Step 4: Simplify right side
   72,070.76x = 4,788,456,891.24
5. Step 5: Solve for x
   x = 4,788,456,891.24/72,070.76
6. Step 6: Final answer
   x = 66,441.05