Finding the Fourth Proportional to 309,427,186.32, 464,090,303.31 and 91,026,469.17

Step by Step Solution

1. Step 1: Write the proportion equation
   309,427,186.32 : 464,090,303.31 = 91,026,469.17 : x
2. Step 2: Convert to fraction form
   309,427,186.32/464,090,303.31 = 91,026,469.17/x
3. Step 3: Cross multiply
   309,427,186.32x = 464,090,303.31 × 91,026,469.17
4. Step 4: Simplify right side
   309,427,186.32x = 42,244,501,686,343,664
5. Step 5: Solve for x
   x = 42,244,501,686,343,664/309,427,186.32
6. Step 6: Final answer
   x = 136,524,854.81