Finding the Fourth Proportional to 42,325.60, 63,492.72 and 14,620

Step by Step Solution

1. Step 1: Write the proportion equation
   42,325.60 : 63,492.72 = 14,620 : x
2. Step 2: Convert to fraction form
   42,325.60/63,492.72 = 14,620/x
3. Step 3: Cross multiply
   42,325.60x = 63,492.72 × 14,620
4. Step 4: Simplify right side
   42,325.60x = 928,263,566.40
5. Step 5: Solve for x
   x = 928,263,566.40/42,325.60
6. Step 6: Final answer
   x = 21,931.49