Finding the Fourth Proportional to 116,994,774.47, 161,450,816.20 and 64,782,689.12

Step by Step Solution

1. Step 1: Write the proportion equation
   116,994,774.47 : 161,450,816.20 = 64,782,689.12 : x
2. Step 2: Convert to fraction form
   116,994,774.47/161,450,816.20 = 64,782,689.12/x
3. Step 3: Cross multiply
   116,994,774.47x = 161,450,816.20 × 64,782,689.12
4. Step 4: Simplify right side
   116,994,774.47x = 10,459,218,034,055,168
5. Step 5: Solve for x
   x = 10,459,218,034,055,168/116,994,774.47
6. Step 6: Final answer
   x = 89,399,018.73