Finding the Fourth Proportional to 309,427,185.32, 464,090,301.81 and 91,026,468.17

Step by Step Solution

1. Step 1: Write the proportion equation
   309,427,185.32 : 464,090,301.81 = 91,026,468.17 : x
2. Step 2: Convert to fraction form
   309,427,185.32/464,090,301.81 = 91,026,468.17/x
3. Step 3: Cross multiply
   309,427,185.32x = 464,090,301.81 × 91,026,468.17
4. Step 4: Simplify right side
   309,427,185.32x = 42,244,501,083,393,208
5. Step 5: Solve for x
   x = 42,244,501,083,393,208/309,427,185.32
6. Step 6: Final answer
   x = 136,524,853.30