Finding the Fourth Proportional to 91,981,407.29, 138,008,918.16 and 37,398,188.39

Step by Step Solution

1. Step 1: Write the proportion equation
   91,981,407.29 : 138,008,918.16 = 37,398,188.39 : x
2. Step 2: Convert to fraction form
   91,981,407.29/138,008,918.16 = 37,398,188.39/x
3. Step 3: Cross multiply
   91,981,407.29x = 138,008,918.16 × 37,398,188.39
4. Step 4: Simplify right side
   91,981,407.29x = 5,161,283,520,157,727
5. Step 5: Solve for x
   x = 5,161,283,520,157,727/91,981,407.29
6. Step 6: Final answer
   x = 56,112,247.82