Finding the Fourth Proportional to 42,557,843.43, 63,845,731.80 and 13,801,736.79

Step by Step Solution

1. Step 1: Write the proportion equation
   42,557,843.43 : 63,845,731.80 = 13,801,736.79 : x
2. Step 2: Convert to fraction form
   42,557,843.43/63,845,731.80 = 13,801,736.79/x
3. Step 3: Cross multiply
   42,557,843.43x = 63,845,731.80 × 13,801,736.79
4. Step 4: Simplify right side
   42,557,843.43x = 881,181,985,468,532.88
5. Step 5: Solve for x
   x = 881,181,985,468,532.88/42,557,843.43
6. Step 6: Final answer
   x = 20,705,513.12