Finding the Fourth Proportional to 42,741,441, 64,111,476.78 and 13,594,856.76

Step by Step Solution

1. Step 1: Write the proportion equation
   42,741,441 : 64,111,476.78 = 13,594,856.76 : x
2. Step 2: Convert to fraction form
   42,741,441/64,111,476.78 = 13,594,856.76/x
3. Step 3: Cross multiply
   42,741,441x = 64,111,476.78 × 13,594,856.76
4. Step 4: Simplify right side
   42,741,441x = 871,586,343,496,166
5. Step 5: Solve for x
   x = 871,586,343,496,166/42,741,441
6. Step 6: Final answer
   x = 20,392,067.35