Finding the Fourth Proportional to 116,978,777.10, 161,435,756.16 and 64,767,811.14

Step by Step Solution

1. Step 1: Write the proportion equation
   116,978,777.10 : 161,435,756.16 = 64,767,811.14 : x
2. Step 2: Convert to fraction form
   116,978,777.10/161,435,756.16 = 64,767,811.14/x
3. Step 3: Cross multiply
   116,978,777.10x = 161,435,756.16 × 64,767,811.14
4. Step 4: Simplify right side
   116,978,777.10x = 10,455,840,566,213,972
5. Step 5: Solve for x
   x = 10,455,840,566,213,972/116,978,777.10
6. Step 6: Final answer
   x = 89,382,371.96