Finding the Fourth Proportional to 342,491,933.10, 472,638,870.81 and 185,859,039.86

Step by Step Solution

1. Step 1: Write the proportion equation
   342,491,933.10 : 472,638,870.81 = 185,859,039.86 : x
2. Step 2: Convert to fraction form
   342,491,933.10/472,638,870.81 = 185,859,039.86/x
3. Step 3: Cross multiply
   342,491,933.10x = 472,638,870.81 × 185,859,039.86
4. Step 4: Simplify right side
   342,491,933.10x = 87,844,206,726,897,984
5. Step 5: Solve for x
   x = 87,844,206,726,897,984/342,491,933.10
6. Step 6: Final answer
   x = 256,485,476.70