Finding the Fourth Proportional to 42,977.52, 64,356.12 and 25,459.92

Step by Step Solution

1. Step 1: Write the proportion equation
   42,977.52 : 64,356.12 = 25,459.92 : x
2. Step 2: Convert to fraction form
   42,977.52/64,356.12 = 25,459.92/x
3. Step 3: Cross multiply
   42,977.52x = 64,356.12 × 25,459.92
4. Step 4: Simplify right side
   42,977.52x = 1,638,501,666.71
5. Step 5: Solve for x
   x = 1,638,501,666.71/42,977.52
6. Step 6: Final answer
   x = 38,124.62