Finding the Fourth Proportional to 42,837.84, 64,248.12 and 23,112.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,837.84 : 64,248.12 = 23,112.72 : x
2. Step 2: Convert to fraction form
   42,837.84/64,248.12 = 23,112.72/x
3. Step 3: Cross multiply
   42,837.84x = 64,248.12 × 23,112.72
4. Step 4: Simplify right side
   42,837.84x = 1,484,948,808.09
5. Step 5: Solve for x
   x = 1,484,948,808.09/42,837.84
6. Step 6: Final answer
   x = 34,664.42