Finding the Fourth Proportional to 42,897,352,796.64, 64,355,337,767 and 13,050,908,256.16

Step by Step Solution

1. Step 1: Write the proportion equation
   42,897,352,796.64 : 64,355,337,767 = 13,050,908,256.16 : x
2. Step 2: Convert to fraction form
   42,897,352,796.64/64,355,337,767 = 13,050,908,256.16/x
3. Step 3: Cross multiply
   42,897,352,796.64x = 64,355,337,767 × 13,050,908,256.16
4. Step 4: Simplify right side
   42,897,352,796.64x = 839,895,608,991,305,695,232
5. Step 5: Solve for x
   x = 839,895,608,991,305,695,232/42,897,352,796.64
6. Step 6: Final answer
   x = 19,579,194,384.63