Finding the Fourth Proportional to 116,978,446.64, 161,435,301.23 and 64,767,483.02

Step by Step Solution

1. Step 1: Write the proportion equation
   116,978,446.64 : 161,435,301.23 = 64,767,483.02 : x
2. Step 2: Convert to fraction form
   116,978,446.64/161,435,301.23 = 64,767,483.02/x
3. Step 3: Cross multiply
   116,978,446.64x = 161,435,301.23 × 64,767,483.02
4. Step 4: Simplify right side
   116,978,446.64x = 10,455,758,131,242,610
5. Step 5: Solve for x
   x = 10,455,758,131,242,610/116,978,446.64
6. Step 6: Final answer
   x = 89,381,919.76