Finding the Fourth Proportional to 42,848,435.15, 64,264,283.60 and 13,694,453.78

Step by Step Solution

1. Step 1: Write the proportion equation
   42,848,435.15 : 64,264,283.60 = 13,694,453.78 : x
2. Step 2: Convert to fraction form
   42,848,435.15/64,264,283.60 = 13,694,453.78/x
3. Step 3: Cross multiply
   42,848,435.15x = 64,264,283.60 × 13,694,453.78
4. Step 4: Simplify right side
   42,848,435.15x = 880,064,261,075,218.38
5. Step 5: Solve for x
   x = 880,064,261,075,218.38/42,848,435.15
6. Step 6: Final answer
   x = 20,539,005.87