Finding the Fourth Proportional to 116,726,033.72, 161,084,963.58 and 64,515,892.88

Step by Step Solution

1. Step 1: Write the proportion equation
   116,726,033.72 : 161,084,963.58 = 64,515,892.88 : x
2. Step 2: Convert to fraction form
   116,726,033.72/161,084,963.58 = 64,515,892.88/x
3. Step 3: Cross multiply
   116,726,033.72x = 161,084,963.58 × 64,515,892.88
4. Step 4: Simplify right side
   116,726,033.72x = 10,392,540,254,905,982
5. Step 5: Solve for x
   x = 10,392,540,254,905,982/116,726,033.72
6. Step 6: Final answer
   x = 89,033,610.79