Finding the Fourth Proportional to 116,855,790, 161,265,738.42 and 64,643,925.48

Step by Step Solution

1. Step 1: Write the proportion equation
   116,855,790 : 161,265,738.42 = 64,643,925.48 : x
2. Step 2: Convert to fraction form
   116,855,790/161,265,738.42 = 64,643,925.48/x
3. Step 3: Cross multiply
   116,855,790x = 161,265,738.42 × 64,643,925.48
4. Step 4: Simplify right side
   116,855,790x = 10,424,850,376,899,652
5. Step 5: Solve for x
   x = 10,424,850,376,899,652/116,855,790
6. Step 6: Final answer
   x = 89,211,243.85