Finding the Fourth Proportional to 42,442,946.59, 63,664,340.42 and 13,299,016.69

Step by Step Solution

1. Step 1: Write the proportion equation
   42,442,946.59 : 63,664,340.42 = 13,299,016.69 : x
2. Step 2: Convert to fraction form
   42,442,946.59/63,664,340.42 = 13,299,016.69/x
3. Step 3: Cross multiply
   42,442,946.59x = 63,664,340.42 × 13,299,016.69
4. Step 4: Simplify right side
   42,442,946.59x = 846,673,125,934,921.38
5. Step 5: Solve for x
   x = 846,673,125,934,921.38/42,442,946.59
6. Step 6: Final answer
   x = 19,948,500.14