Finding the Fourth Proportional to 42,905,685,133.15, 64,299,688,196.55 and 27,156,396,554.49

Step by Step Solution

1. Step 1: Write the proportion equation
   42,905,685,133.15 : 64,299,688,196.55 = 27,156,396,554.49 : x
2. Step 2: Convert to fraction form
   42,905,685,133.15/64,299,688,196.55 = 27,156,396,554.49/x
3. Step 3: Cross multiply
   42,905,685,133.15x = 64,299,688,196.55 × 27,156,396,554.49
4. Step 4: Simplify right side
   42,905,685,133.15x = 1,746,147,830,995,571,965,952
5. Step 5: Solve for x
   x = 1,746,147,830,995,571,965,952/42,905,685,133.15
6. Step 6: Final answer
   x = 40,697,353,406.12