Finding the Fourth Proportional to 276,015,851.98, 413,979,901.89 and 91,768,003.18

Step by Step Solution

1. Step 1: Write the proportion equation
   276,015,851.98 : 413,979,901.89 = 91,768,003.18 : x
2. Step 2: Convert to fraction form
   276,015,851.98/413,979,901.89 = 91,768,003.18/x
3. Step 3: Cross multiply
   276,015,851.98x = 413,979,901.89 × 91,768,003.18
4. Step 4: Simplify right side
   276,015,851.98x = 37,990,108,953,097,608
5. Step 5: Solve for x
   x = 37,990,108,953,097,608/276,015,851.98
6. Step 6: Final answer
   x = 137,637,417.13