Finding the Fourth Proportional to 621,022.58, 931,532.71 and 194,591.05

Step by Step Solution

1. Step 1: Write the proportion equation
   621,022.58 : 931,532.71 = 194,591.05 : x
2. Step 2: Convert to fraction form
   621,022.58/931,532.71 = 194,591.05/x
3. Step 3: Cross multiply
   621,022.58x = 931,532.71 × 194,591.05
4. Step 4: Simplify right side
   621,022.58x = 181,267,928,148.25
5. Step 5: Solve for x
   x = 181,267,928,148.25/621,022.58
6. Step 6: Final answer
   x = 291,886.21