Finding the Fourth Proportional to 42,875.96, 59,139.30 and 30,156.13

Step by Step Solution

1. Step 1: Write the proportion equation
   42,875.96 : 59,139.30 = 30,156.13 : x
2. Step 2: Convert to fraction form
   42,875.96/59,139.30 = 30,156.13/x
3. Step 3: Cross multiply
   42,875.96x = 59,139.30 × 30,156.13
4. Step 4: Simplify right side
   42,875.96x = 1,783,412,271.06
5. Step 5: Solve for x
   x = 1,783,412,271.06/42,875.96
6. Step 6: Final answer
   x = 41,594.69