Finding the Fourth Proportional to 116,972,683.07, 161,433,131.86 and 64,761,719.25

Step by Step Solution

1. Step 1: Write the proportion equation
   116,972,683.07 : 161,433,131.86 = 64,761,719.25 : x
2. Step 2: Convert to fraction form
   116,972,683.07/161,433,131.86 = 64,761,719.25/x
3. Step 3: Cross multiply
   116,972,683.07x = 161,433,131.86 × 64,761,719.25
4. Step 4: Simplify right side
   116,972,683.07x = 10,454,687,163,165,552
5. Step 5: Solve for x
   x = 10,454,687,163,165,552/116,972,683.07
6. Step 6: Final answer
   x = 89,377,168.15