Finding the Fourth Proportional to 42,374,502.72, 63,568,078.56 and 19,657,696.32

Step by Step Solution

1. Step 1: Write the proportion equation
   42,374,502.72 : 63,568,078.56 = 19,657,696.32 : x
2. Step 2: Convert to fraction form
   42,374,502.72/63,568,078.56 = 19,657,696.32/x
3. Step 3: Cross multiply
   42,374,502.72x = 63,568,078.56 × 19,657,696.32
4. Step 4: Simplify right side
   42,374,502.72x = 1,249,601,983,978,383
5. Step 5: Solve for x
   x = 1,249,601,983,978,383/42,374,502.72
6. Step 6: Final answer
   x = 29,489,478.43