Finding the Fourth Proportional to 648,076,969.77, 972,117,976.71 and 156,789,451.17

Step by Step Solution

1. Step 1: Write the proportion equation
   648,076,969.77 : 972,117,976.71 = 156,789,451.17 : x
2. Step 2: Convert to fraction form
   648,076,969.77/972,117,976.71 = 156,789,451.17/x
3. Step 3: Cross multiply
   648,076,969.77x = 972,117,976.71 × 156,789,451.17
4. Step 4: Simplify right side
   648,076,969.77x = 152,417,844,040,851,744
5. Step 5: Solve for x
   x = 152,417,844,040,851,744/648,076,969.77
6. Step 6: Final answer
   x = 235,184,786.92