Finding the Fourth Proportional to 72,257.34, 99,735.16 and 42,048.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,257.34 : 99,735.16 = 42,048.50 : x
2. Step 2: Convert to fraction form
   72,257.34/99,735.16 = 42,048.50/x
3. Step 3: Cross multiply
   72,257.34x = 99,735.16 × 42,048.50
4. Step 4: Simplify right side
   72,257.34x = 4,193,713,875.26
5. Step 5: Solve for x
   x = 4,193,713,875.26/72,257.34
6. Step 6: Final answer
   x = 58,038.59