Finding the Fourth Proportional to 116,218,400.99, 160,388,646.89 and 64,007,422.81

Step by Step Solution

1. Step 1: Write the proportion equation
   116,218,400.99 : 160,388,646.89 = 64,007,422.81 : x
2. Step 2: Convert to fraction form
   116,218,400.99/160,388,646.89 = 64,007,422.81/x
3. Step 3: Cross multiply
   116,218,400.99x = 160,388,646.89 × 64,007,422.81
4. Step 4: Simplify right side
   116,218,400.99x = 10,266,063,934,691,012
5. Step 5: Solve for x
   x = 10,266,063,934,691,012/116,218,400.99
6. Step 6: Final answer
   x = 88,334,238.36