Finding the Fourth Proportional to 42,898.39, 64,276.45 and 30,356.25

Step by Step Solution

1. Step 1: Write the proportion equation
   42,898.39 : 64,276.45 = 30,356.25 : x
2. Step 2: Convert to fraction form
   42,898.39/64,276.45 = 30,356.25/x
3. Step 3: Cross multiply
   42,898.39x = 64,276.45 × 30,356.25
4. Step 4: Simplify right side
   42,898.39x = 1,951,191,985.31
5. Step 5: Solve for x
   x = 1,951,191,985.31/42,898.39
6. Step 6: Final answer
   x = 45,484.04