Finding the Fourth Proportional to 116,997,315.68, 161,454,308.25 and 64,785,230.33

Step by Step Solution

1. Step 1: Write the proportion equation
   116,997,315.68 : 161,454,308.25 = 64,785,230.33 : x
2. Step 2: Convert to fraction form
   116,997,315.68/161,454,308.25 = 64,785,230.33/x
3. Step 3: Cross multiply
   116,997,315.68x = 161,454,308.25 × 64,785,230.33
4. Step 4: Simplify right side
   116,997,315.68x = 10,459,854,546,939,798
5. Step 5: Solve for x
   x = 10,459,854,546,939,798/116,997,315.68
6. Step 6: Final answer
   x = 89,402,517.37