Finding the Fourth Proportional to 42,528.24, 63,795.06 and 12,948.12

Step by Step Solution

1. Step 1: Write the proportion equation
   42,528.24 : 63,795.06 = 12,948.12 : x
2. Step 2: Convert to fraction form
   42,528.24/63,795.06 = 12,948.12/x
3. Step 3: Cross multiply
   42,528.24x = 63,795.06 × 12,948.12
4. Step 4: Simplify right side
   42,528.24x = 826,026,092.29
5. Step 5: Solve for x
   x = 826,026,092.29/42,528.24
6. Step 6: Final answer
   x = 19,423.00