Finding the Fourth Proportional to 42,053,154.48, 63,079,311.34 and 13,299,294.96

Step by Step Solution

1. Step 1: Write the proportion equation
   42,053,154.48 : 63,079,311.34 = 13,299,294.96 : x
2. Step 2: Convert to fraction form
   42,053,154.48/63,079,311.34 = 13,299,294.96/x
3. Step 3: Cross multiply
   42,053,154.48x = 63,079,311.34 × 13,299,294.96
4. Step 4: Simplify right side
   42,053,154.48x = 838,910,367,384,333
5. Step 5: Solve for x
   x = 838,910,367,384,333/42,053,154.48
6. Step 6: Final answer
   x = 19,948,809.49