Finding the Fourth Proportional to 42,994.48, 64,492.47 and 14,915.53

Step by Step Solution

1. Step 1: Write the proportion equation
   42,994.48 : 64,492.47 = 14,915.53 : x
2. Step 2: Convert to fraction form
   42,994.48/64,492.47 = 14,915.53/x
3. Step 3: Cross multiply
   42,994.48x = 64,492.47 × 14,915.53
4. Step 4: Simplify right side
   42,994.48x = 961,939,371.06
5. Step 5: Solve for x
   x = 961,939,371.06/42,994.48
6. Step 6: Final answer
   x = 22,373.56