Finding the Fourth Proportional to 117,146,631.09, 161,658,850.82 and 64,221,529.07

Step by Step Solution

1. Step 1: Write the proportion equation
   117,146,631.09 : 161,658,850.82 = 64,221,529.07 : x
2. Step 2: Convert to fraction form
   117,146,631.09/161,658,850.82 = 64,221,529.07/x
3. Step 3: Cross multiply
   117,146,631.09x = 161,658,850.82 × 64,221,529.07
4. Step 4: Simplify right side
   117,146,631.09x = 10,381,978,586,533,132
5. Step 5: Solve for x
   x = 10,381,978,586,533,132/117,146,631.09
6. Step 6: Final answer
   x = 88,623,791.31