Finding the Fourth Proportional to 91,666,133.69, 137,559,776.54 and 43,157,859.91

Step by Step Solution

1. Step 1: Write the proportion equation
   91,666,133.69 : 137,559,776.54 = 43,157,859.91 : x
2. Step 2: Convert to fraction form
   91,666,133.69/137,559,776.54 = 43,157,859.91/x
3. Step 3: Cross multiply
   91,666,133.69x = 137,559,776.54 × 43,157,859.91
4. Step 4: Simplify right side
   91,666,133.69x = 5,936,785,564,604,535
5. Step 5: Solve for x
   x = 5,936,785,564,604,535/91,666,133.69
6. Step 6: Final answer
   x = 64,765,310.00