Finding the Fourth Proportional to 116,978,444.64, 161,435,298.47 and 64,767,481.02

Step by Step Solution

1. Step 1: Write the proportion equation
   116,978,444.64 : 161,435,298.47 = 64,767,481.02 : x
2. Step 2: Convert to fraction form
   116,978,444.64/161,435,298.47 = 64,767,481.02/x
3. Step 3: Cross multiply
   116,978,444.64x = 161,435,298.47 × 64,767,481.02
4. Step 4: Simplify right side
   116,978,444.64x = 10,455,757,629,289,924
5. Step 5: Solve for x
   x = 10,455,757,629,289,924/116,978,444.64
6. Step 6: Final answer
   x = 89,381,917.00