Finding the Fourth Proportional to 72,947.02, 100,692 and 42,742.12

Step by Step Solution

1. Step 1: Write the proportion equation
   72,947.02 : 100,692 = 42,742.12 : x
2. Step 2: Convert to fraction form
   72,947.02/100,692 = 42,742.12/x
3. Step 3: Cross multiply
   72,947.02x = 100,692 × 42,742.12
4. Step 4: Simplify right side
   72,947.02x = 4,303,789,547.04
5. Step 5: Solve for x
   x = 4,303,789,547.04/72,947.02
6. Step 6: Final answer
   x = 58,998.84