Finding the Fourth Proportional to 116,978,778.10, 161,435,757.54 and 64,767,812.14

Step by Step Solution

1. Step 1: Write the proportion equation
   116,978,778.10 : 161,435,757.54 = 64,767,812.14 : x
2. Step 2: Convert to fraction form
   116,978,778.10/161,435,757.54 = 64,767,812.14/x
3. Step 3: Cross multiply
   116,978,778.10x = 161,435,757.54 × 64,767,812.14
4. Step 4: Simplify right side
   116,978,778.10x = 10,455,840,817,029,308
5. Step 5: Solve for x
   x = 10,455,840,817,029,308/116,978,778.10
6. Step 6: Final answer
   x = 89,382,373.34