Finding the Fourth Proportional to 42,937.02, 64,444.82 and 21,892.15

Step by Step Solution

1. Step 1: Write the proportion equation
   42,937.02 : 64,444.82 = 21,892.15 : x
2. Step 2: Convert to fraction form
   42,937.02/64,444.82 = 21,892.15/x
3. Step 3: Cross multiply
   42,937.02x = 64,444.82 × 21,892.15
4. Step 4: Simplify right side
   42,937.02x = 1,410,835,666.16
5. Step 5: Solve for x
   x = 1,410,835,666.16/42,937.02
6. Step 6: Final answer
   x = 32,858.26