Finding the Fourth Proportional to 42,142,054,838.61, 63,187,838,169.83 and 13,413,062,316.15

Step by Step Solution

1. Step 1: Write the proportion equation
   42,142,054,838.61 : 63,187,838,169.83 = 13,413,062,316.15 : x
2. Step 2: Convert to fraction form
   42,142,054,838.61/63,187,838,169.83 = 13,413,062,316.15/x
3. Step 3: Cross multiply
   42,142,054,838.61x = 63,187,838,169.83 × 13,413,062,316.15
4. Step 4: Simplify right side
   42,142,054,838.61x = 847,542,410,994,415,435,776
5. Step 5: Solve for x
   x = 847,542,410,994,415,435,776/42,142,054,838.61
6. Step 6: Final answer
   x = 20,111,558,732.49